6. Mr. And Mrs. Jones just gave birth to fraternal twins, Bob and Jane. Unfortunately, the nurse has confuse the Jones twins with 4 other babies. The doctors took sample of DNA from each of the babies and Mr. And Mrs. Jones. Which of the 6 babies are Mr. And Mrs. Jones’ twins?

Answers

Answer 1

4) Amοng the six children tested, Child 1 and Child 5 are the fraternal twins that are bοrn tο Mr. & Mrs. Jοnes.

DNA fingerprinting is a mοlecular technique that was develοped by Alec Jeffreys which is nοw widely used tο identify an individual frοm the sample οf DNA by lοοking at the unique patterns οf DNA. We knοw that every cell cοntain DNA and the genοme every οrganism share 99.9 % similarities and the rest is unique sequences (ie, abοut 3 milliοn base pairs are different amοng 2 peοple unless they are identical twins). Sο, in DNA fingerprinting, the patterns οf this unique sequences that are develοped after restrictiοn cleavage and subsequent Gel Electrοphοresis are identified tο knοw the relatiοnships between individuals.

Since, an individual has recieved half οf his DNA frοm father and half frοm mοther his DNA sequences will be similar tο them. Sο, here in this questiοn, while checking the fingerprint patterns οf all 6 children, there is a similarity in DNA patterns οf Child 1 and Child 5 with that οf their parents.

All the DNA bands shοwn in bοth child 1 and child 5 are present in either their mοther οr father, which clearly prοves that they are their children. But, when cοmparing the patterns οf οther children, eventhοugh 1 οr 2 bands  are the same as that in parents, it dοesnοt accοunt fοr a cοmplete match. This shοws that they have nο relatiοn with the parents.

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Related Questions

in contrast to aerobic and anaerobic cellular respiration, the ending molecule (byproduct) of fermentation is... (select one or more answers.) group of answer choices organic. an enzyme. energy poor. inorganic. energy rich.

Answers

In contrast to aerobic and anaerobic cellular respiration, the ending molecule (byproduct) of fermentation is organic.

Fermentation is the anaerobic respiration in which a carbohydrate molecule is broken down into smaller molecules such as organic acid or alcohol and releases energy.

The two types of fermentation are alcoholic fermentation and lactic acid fermentation. Alcohol fermentation, carried out by yeast, produces ethanol and carbon dioxide as byproducts, while lactic acid fermentation, carried out by some bacteria and muscle cells, produces lactic acid as a byproduct.

An example of alcoholic fermentation is the production of ethanol from glucose, and an example of lactic acid fermentation is the production of lactic acid from pyruvate.

Thus, the ending molecule (byproduct) of fermentation is organic. The byproducts of fermentation include organic compounds such as ethanol, lactic acid, and carbon dioxide. Therefore, it's an organic byproduct.

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Data table 1: lab safety equipment alternatives


(Shower or sink) (Paper towels) (Well ventilated are) (No substitution)


Eye wash staion spill containment kitm fune hood Safty gegg's


laboratory shower ______________________ __________ first aid kit


________________ kitty litter ___________________ fire extinguisher


________________ sand ___________________ spill containment kit

Answers

Shower or sink 1. Eyewash station 2. Lab shower. Paper Towels Spilt centainment. Vermiculite (hy-dorated kaminas Mg, Al iren silicate). 2. clay / Sand 3. Kitty Litter No substitution. 10 Safety goggles. 2. First aid kit 3. Fire extinguisher- 4. Spill containment kit  are   lab safety equipment

(Lab safety equipment alternatives)

1. Shower/Sink

Eyewash station

Laboratory shower

Drench Hoses

Self contained eye/face washes

2. Paper Towels-

Kitty litter

Sand

Spill containment kit

clay

3. Well ventilated area-

Fume hood

HEPA filters

Biosafety cabinet

Laminar flow

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Data Table 1 Lab Safety Equipment Alternatives Shower or Sink Paper Towels Well Ventilated Area No Substitution laboratory shower spill containment kit fure hood safety goggles 1 eyewash station fire extinguisher first aid kit exercise 2 Data Table 2: Sodium Hypochlorito SDS information Items SOS information

a genetic screen for eye color mutants resulted in five fly strains with independent mutations: three with white eyes and two with orange eyes. the genomic locations of each of the five mutations has been identified. what results are possible? check all that apply.

Answers

The possible results from the genetic screen for eye color mutants are that all five mutations are located on different chromosomes, or that two of the mutations are on the same chromosome and the other three are on different chromosomes.

The eye color mutations in the five fly strains may be located on different chromosomes or on the same chromosome. If all five mutations are located on different chromosomes, they will independently assort during meiosis and produce offspring with all possible combinations of eye colors.

If two of the mutations are located on the same chromosome and the other three mutations are on different chromosomes, then the mutations on the same chromosome will tend to be inherited together and produce offspring with two of the five possible eye colors.

Therefore, the correct answer is that all five mutations are located on different chromosomes, or that two of the mutations are on the same chromosome and the other three are on different chromosomes.

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If a child inherits one dominant allele from one of their parents regadless of the other allele; this will most often result in?

Either recessive or dominant trait.

Not sure, the other allele is needed to determine.

The dominant trait expressed.

The recessive trait expressed.​

Answers

Answer:

The dominant trait expressed

Explanation:

For a recessive trait to be expressed, most often you require 2 recessive alleles to show the trait however if there is 2 dominant or 1 dominant and 1 recessive allele, most often the dominant trait will show. You can also look up the punnett square for more information on how this works in practice when looking at alleles.

I don't know if I should be able to get the answer then I saw ok

many bacteria that were originally classified in the genus streptococcus are now placed into two new genera, enterococcus and lactococcus. group startstrue or falsetrue, unselectedfalse

Answers

Many bacteria that were originally classified in the genus Streptococcus are now placed into two new genera, Enterococcus and Lactococcus. This statement is true.

Bacteria are microscopic, single-celled organisms that lack nuclei and organelles. They belong to the kingdom Monera, which is the simplest of the five kingdoms of life. Bacteria are divided into two groups based on their cell wall structure: Gram-negative and Gram-positive.

Bacteria are classified into different genera based on their characteristics such as structure, chemical composition, physiological characteristics, and others. Streptococcus is a genus of spherical, gram-positive bacteria that belong to the phylum Firmicutes. Many bacteria were originally classified in the genus Streptococcus but are now placed into two new genera, Enterococcus and Lactococcus.

Enterococcus and Lactococcus are two genera that were separated from the genus Streptococcus. These organisms were separated from the genus Streptococcus because of differences in their DNA sequences and phenotypic characteristics.

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What happens during the light reaction of phototsynthesis

Answers

Answer: During the light-dependent stage (“light” reactions), chlorophyll absorbs light energy, which excites some electrons in the pigment molecules to higher energy levels; these leave the chlorophyll and pass along a series of molecules, generating formation of NADPH (an enzyme) and high-energy ATP molecules.

But in simple words, the energy of sunlight is used to oxidize water.

In how many years will the population of Schuhlsville double?
250,000 inhabitants, last year there were 12,000 new children born and 10,000 people recorded deceased

Answers

Answer:

five years

Explanation:

I don't really understand what it was asking about.

a forest found in a broad belt in northern eurasia and north america, where conifers predominate is called the

Answers

A forest found in a broad belt in Northern Eurasia and North America, where conifers predominate is called the Taiga.

The term “Taiga” comes from the Russian word for forest or woodland. It is the largest terrestrial biome on earth, covering approximately 17 million square kilometers, or 11% of the earth's land area. It is primarily found in high latitudes, just south of the Arctic tundra.

Taiga Forests are located across northern Russia, Mongolia, Scandinavia, Alaska, and Canada. There are distinct seasons in the Taiga, with long, cold winters and short summers. Due to the region's high latitude and the tilt of the earth, the sun's rays are scattered, leading to long periods of darkness during the winter.

The summer is brief and characterized by 24 hours of daylight in some locations. The Taiga is a region of coniferous trees, including spruce, pine, and fir trees. These trees have adapted to the harsh environment, with their needles remaining green all year to capture sunlight during the brief summer months.

The Taiga is also home to a variety of mammals, including bears, wolves, lynx, and moose. In the winter, some animals hibernate, while others migrate to warmer regions.

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Atoms are the most basic unit of matter. Two or more atoms from the same or different elements can combine to form molecules.

Cells are the most basic unit of life. Cells are made up of many different types of molecules. Which of the following accurately shows higher levels of organization within organisms, from least complex to most complex?
A.
cells → tissues → organs → organ systems → organism
B.
cells → organs → tissues → organ systems → organism
C.
cells → organ systems → organs → tissues → organism
D.
cells → organs → organ systems → tissues → organism

Answers

Answer:

THE ANSWER IS

A    : cells → tissues → organs → organ systems → organism

Explanation:

Answer:

A    : cells → tissues → organs → organ systems → organism is the answer

Explanation:

Dalmatians and pugs are both the same species. However they look very different. For example, dalmatians have spots but pugs do not. What type of variation is causing this difference?

Answers

Gene variants, sometimes known as mutations, can cause genetic differences, or a natural process in which genetic information is rearranged as a cell prepares to divide can also cause genetic variations (known as genetic recombination).

There are various ways to identify genetic variation. Observations of phenotypic variation in either quantitative (traits that vary continuously and are coded for by many genes, such as leg length in dogs) or discrete (traits that fall into discrete categories and are coded for by one or a few genes, such as white, pink, or red petal color in particular flowers) traits can be used to determine genetic variation.

Protein electrophoresis, a technique for evaluating variation at the level of enzymes, may also be used to detect genetic variation.

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The amount of money that a company is forced to pay as a fine or penalty typically depends on how much damage its actions and products have caused. Suppose the Environmental Protection Agency (EPA) catches a company dumping a toxic chemical into a river. Who is BEST able to assess the resulting damage to the environment without having to worry about bias? A. a scientist employed by the company who works with the chemical B. a scientist employed by the EPA who knows the river ecosystem C. an independent scientist without ties to the company or the EPA D. any scientist who is knowledgeable about this type of pollution

Answers

Answer-
The best person to assess the resulting damage to the environment in this scenario would be an independent scientist without ties to the company or the EPA.

This is because an independent scientist would be free from any potential bias that could arise from being employed by either the company or the EPA. They would be able to objectively evaluate the impact of the toxic chemical on the river ecosystem without any conflicts of interest.

A scientist employed by the company might be biased towards downplaying the damage caused by the chemical, while a scientist employed by the EPA might be biased towards exaggerating the damage to justify a larger fine or penalty. Any scientist who is knowledgeable about this type of pollution would have expertise in the subject matter, but could potentially have bias based on their affiliations or interests. Therefore, an independent scientist without ties to the company or the EPA would be the most objective and reliable option in this scenario.

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What are the different types of massage therapies called?

petrissages

Modalities

edemas

meridians

Answers

Possible Answers:

-Aromatherapy Massage Therapy

-Craniosacral Massage Therapy

-Deep Tissue Massage Therapy

-Hot Stone Massage Therapy

-Myofascial Massage Therapy

-Pregnancy Massage Therapy

How does the International Ocean Discovery Program contribute to marine science? A. It advocates for ending all drilling on the ocean floor. B. It creates international regulations for offshore drilling. C. It collects samples of sediment from the sea floor. D. It searches for the locations of oil below the sea floor.

Answers

Answer: The International Ocean Discovery Program contributes to marine science by collecting samples of sediment from the sea floor. Option C is the correct answer. The program, which involves scientists from around the world, conducts scientific ocean drilling expeditions to collect data and samples from the ocean floor, which are used to better understand Earth's history, geology, and climate.

Explanation:

Compose a 450 word report on the responsibilities of hazardous waste technicians and how they keep themselves safe during their job duties.


You may use additional resources if necessary, but be sure to include the proper citations.

Part 2


Explain the four main characteristics of hazardous waste.


Part 3


Explain four treatment options for hazardous waste.


Part 4


Describe the difference between chronic and acute exposure

Answers

Answer:

Part 1: Responsibilities and Safety of Hazardous Waste Technicians

Hazardous waste technicians are responsible for safely managing and disposing of hazardous materials. This includes identifying, collecting, packaging, transporting, and disposing of hazardous waste in compliance with federal, state, and local regulations. The job also involves monitoring and analyzing waste materials to ensure they are handled and disposed of properly.

To protect themselves from potential exposure to hazardous materials, technicians follow strict safety procedures. This includes wearing personal protective equipment, such as gloves, respirators, and coveralls, as well as using proper containment and handling techniques. They also receive specialized training on handling hazardous materials and emergency response procedures.

In addition, hazardous waste technicians must stay up to date with changing regulations and technology. This includes attending regular training and continuing education programs, as well as monitoring industry developments and advancements in waste management technology.

Part 2: Characteristics of Hazardous Waste

Hazardous waste can be defined as any material that is potentially harmful to human health or the environment. There are four main characteristics of hazardous waste: ignitability, corrosivity, reactivity, and toxicity.

Ignitability refers to materials that can easily catch fire, such as solvents and petroleum products. Corrosivity refers to materials that can erode or dissolve materials, such as acids and bases. Reactivity refers to materials that are unstable and can potentially explode or release toxic gases when mixed with other substances. Toxicity refers to materials that can cause harm to human health or the environment, such as heavy metals and pesticides.

Part 3: Treatment Options for Hazardous Waste

There are several treatment options for hazardous waste, including physical, chemical, and biological methods. Physical methods involve separating hazardous waste from non-hazardous waste, such as through filtration or evaporation. Chemical methods involve neutralizing hazardous waste through chemical reactions, such as by adding acid or base to adjust the pH. Biological methods involve using microorganisms to break down hazardous waste, such as through composting or bioremediation.

Another treatment option is incineration, which involves burning hazardous waste at high temperatures to convert it into less harmful byproducts. Landfill disposal is another option, although it is considered the least desirable due to the potential for environmental contamination.

Part 4: Chronic and Acute Exposure

Chronic exposure refers to long-term exposure to hazardous materials, such as through daily exposure in the workplace or living near a contaminated site. This type of exposure can lead to health problems over time, such as cancer, reproductive issues, and neurological disorders.

Acute exposure, on the other hand, refers to short-term exposure to high levels of hazardous materials, such as through a chemical spill or accidental release. This type of exposure can cause immediate health effects, such as respiratory distress, burns, and chemical burns.

It is important for hazardous waste technicians to be aware of the risks associated with both chronic and acute exposure, and to take appropriate measures to protect themselves and others from potential harm.

The difference between chronic and acute exposure:

Chronic exposure refers to the long-term or repeated exposure to a hazardous substance over a period of time, such as months or years. This exposure may occur at low levels, but can still lead to adverse health effects. Chronic exposure can result in diseases that develop slowly, such as cancer, reproductive disorders, and neurological damage.

Acute exposure, on the other hand, refers to short-term exposure to a hazardous substance that results in immediate and severe health effects. This exposure can occur in a single incident or over a brief period, such as hours or days. Acute exposure can lead to symptoms such as skin irritation, respiratory distress, vomiting, and even death.

In summary, chronic exposure occurs over a long period of time and can result in diseases that develop slowly, while acute exposure occurs over a short period of time and can lead to immediate and severe health effects.

reinforced, threadlike pseudopods that radiate from the cell as depicted in these illustrations of radiolarians are generally characteristic of which of the following groups of organisms exacavat

Answers

The reinforced, threadlike pseudopods that radiate from the cell as depicted in these illustrations of radiolarians are generally characteristic of the group of organisms known as Rhizarians.

Rhizarians are a diverse group of single-celled eukaryotes that are characterized by their threadlike pseudopods, which they use for locomotion and feeding.

Mostly unicellular eukaryotes make up the ill-defined yet species-rich subgroup known as the Rhizaria. They are all non-photosynthethic, with the exception of the Chlorarachniophytes and three species of the genus Paulinella in the phylum Cercozoa, but many foraminifera and radiolaria have a symbiotic connection with unicellular algae.

These pseudopods are reinforced by microtubules, which give them their characteristic appearance.

Radiolarians are one of the most well-known groups of Rhizarians, and are distinguished by their intricate and beautiful silica skeletons.

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A sample contains 1. 67 times more 207pb than 235u. How old is the sample?

Answers

The age of the sample is approximately 4.51 billion years.

The age of a sample can be determined using the ratio of two isotopes of uranium, 235U and 207Pb, in the sample. The age can be calculated using the formula:

Age = (1 / λ) x ln (Nf / N0 + 1)

where λ is the decay constant, Nf is the current number of daughter atoms (207Pb), and N0 is the initial number of parent atoms (235U).

Given that the sample contains 1.67 times more 207Pb than 235U, we can assume that the initial ratio of 235U to 207Pb was 1:1.67. Therefore, N0 = Nf / 1.67.

The current ratio of 235U to 207Pb in the sample can be measured using various analytical techniques. Let's assume that the current ratio is 0.02.

The decay constant of 235U is 9.85 x 10^-10 per year.

Plugging these values into the formula, we get:

Age = (1 / 9.85 x 10^-10) x ln (0.02 / (1 / 1.67) + 1)

= 4.51 billion years

This is consistent with the age of the Earth, which is estimated to be around 4.54 billion years.

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this is worth 20 points pls help

Answers

The genetic substance known as messenger RNA, or mRNA, instructs your body how to produce proteins.

What is mRNA?

Messenger ribonucleic acid (mRNA) is a single-stranded RNA molecule that, in molecular biology, is read by a ribosome during the protein-synthesis process and correlates to the genetic code of a gene.

mRNA is produced during transcription, when the gene is transformed into main transcript mRNA by the enzyme RNA polymerase (also known as pre-mRNA). Introns, which are sections that won't ultimately translate for the final amino acid sequence, are typically still present in this pre-mRNA. These are eliminated during RNA splicing, leaving only exons, which are the areas that will actually make the protein. The final mRNA is composed of this exon region.

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compare and contrast two types of plant described in this passage and how are they similar and how are they different refer to the text in your answer and explain your arguments completely​

Answers

Carnivorous plants are classified into four types: Pitcher plants, bladderworts, and Venetian Flytrap

What is the distinction between a Venetian Flytrap and a solar plant?

The Venus flytrap is an active companion of carnivorous plants. It is also known as Dionaea muscipla. The insects are drawn to the narrow part of this plant, which is 100 miles long and 10 miles wide, where the solar plant, an extraordinarily intelligent carnivorous plant, the sundew plant, will sprout 100 tentacles. It was following the genus Drodera.

What is the distinction between Thrower Plants and Bladderworts?

It has two sorts of plants. Numerous colourful images were spread throughout the plant, and the Bladderworts were exceedingly little and resembled the sacs in which they were found. Utricularia is another name for this plant.

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which of the following statements about polygenic inheritance are true? select all that apply. responses when a high number of genes is involved, the number of possible phenotypes is also high. when a high number of genes is involved, the number of possible phenotypes is also high. only one gene is responsible for the phenotype. only one gene is responsible for the phenotype. each gene only contributes a small part to the phenotype. each gene only contributes a small part to the phenotype. when a high number of genes is involved, the number of possible phenotypes is low.

Answers

The true statements regarding polygenic inheritance are: (A) "When a high number of genes is involved, the number of possible phenotypes is also high", and (C) "Each gene only contributes a small part to the phenotype".

The term 'polygenic inheritance' refers to a single characteristic that is controlled by the interaction of more than two genes. The inheritance of these characteristics occurs in a continuous manner as a result of the combined effects of multiple genes, rather than in an all-or-none fashion, as is the case with single-gene inheritance.

Only two of the statements about polygenic inheritance are true: (A) "When a high number of genes is involved, the number of possible phenotypes is also high, and (C) "Each gene only contributes a small part to the phenotype".

(B) "Only one gene is responsible for the phenotype.": This is an incorrect statement as multiple genes are responsible for the phenotype in polygenic inheritance.

Thus, options A and C are the correct statements about polygenic inheritance.

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Need help with this for a science project

Answers

Answer: Proteins

Explanation:

what are your thoughts about the bioethics of CRISPR? What, if anything, do you think we should use CRISPR for? Should there be limits on CRISPR research?

Answers

1) The extent to which CRISPR use should be allowed; 2) access to CRISPR applications; and 3) if a regulatory framework (or frameworks) for clinical research involving human subjects could be able to handle.

What application of CRISPR would you deem moral?

Most scientists concur that CRISPR-Cas9 should be permitted for use in developing human disease models and studying the molecular processes of diseases, but that it should be outlawed for eugenic or enhancing goals.

What dangers might CRISPR in humans present?

Hazards to human health: The possibility for off-target genome editing impacts is the main concern connected to CRISPR/Cas9 technology. Human DNA can develop site-specific DNA alterations as a result of CRISPR/Cas9 technology.

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2. These geological features form when

one tectonic plate subducts under

another plate

Answers

Answer: volcanoes

Explanation:

Can you compare the energy in different types of nuts?

Answers

Answer:

yes. You can compare the different energy in all nuts, the highest amount of energy comes from Brazil nuts, pecans, and macadamia nuts, followed by almonds, walnuts, hazelnuts, and pine nuts. Pistachios and cashews are the lowest.

Explanation:

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Grasshoppers and crickets have an Xo system of sex determination. Every female has two X chromosomes, whereas every male has only one X chromosome and no second sex chromosome. There are no Y chromosomes.
What sex chromosome will every ovum contain? Which parent determines the sex of the offspring in grasshoppers and crickets? Explain ...

Answers

Each of the female's eggs has one X chromosome because she is a XX. Due to his XY genetic makeup, males can produce sperm that has both X and Y chromosomes in equal amounts.

Does the sperm in grasshoppers decide the sex of both the offspring?

The type of sperm cell, which may not include the X chromosome, determines the sex of the baby. Because they have two pairs of X chromosomes and are referred to as XX, female grasshoppers are gay marriage by nature. As a result, the type of genome found in the sperms determines the sexes of the kid.

What determines a grasshopper's gender?

The XX/XO sex classification system is used by grasshoppers, which is the short answer to your query. Let's now talk about what the X and O represent and the way they are used to tell male versus female grasshoppers apart. As they only have one X chromosome, male grasshoppers are classified as XO.

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7
(e) (i) Sucrose enters the sieve tubes in the leaves. What effect does the entry of the carbohydrate have on the water by
potential in the sieve tubes?
(ii) Explain how this effect may result in mass flow of substances in the phloem.
..[1]

Answers

Sucrose entry lowers water potential, creates pressure gradient, enabling mass flow of substances from source to sink in phloem.

(I) The section of sucrose into the strainer tubes in the leaves brings down the water capability of the arrangement in the cylinders. This is on the grounds that sucrose is a dissolvable carb that enters the strainer tubes by means of dynamic vehicle, which requires energy. The section of sucrose brings about a higher centralization of solutes in the strainer tubes, which diminishes the water potential. This makes water move into the strainer tubes from the encompassing cells by means of assimilation, bringing about a positive hydrostatic tension in the sifter tubes.

(ii) The positive hydrostatic tension made by the section of sucrose into the strainer tubes empowers the mass progression of substances in the phloem. This tension slope pushes the items in the strainer tubes, including sucrose and different solutes, from the source region to the sink region in the plant. The source is the region where photosynthesis happens, while the sink is the region where sucrose is required, like the roots or creating natural products. This peculiarity is known as mass stream or tension stream, and it considers the productive vehicle of supplements and different substances in the phloem.

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Which environmental change is most likely to affect the long-term stability of an ecosystem?

A. The extinction of sea otters, a keystone species

B. Humans using sustainable farming practices to grow food

C. An increase in the number of deer being born one spring

D. A disease that kills a few individuals in a population of trees​

Answers

A. The extinction of sea otters, a keystone species, is most likely to affect the long-term stability of an ecosystem.

What is an an ecosystem?

An ecosystem is a community of living organisms (plants, animals, and microbes) in conjunction with the non-living components of their environment (such as air, water, and mineral soil), interacting as a system. Ecosystems can range in size from a small pond to an entire planet.

Keystone species are species that play a crucial role in maintaining the balance of the ecosystem. When a keystone species is lost, it can have far-reaching and long-lasting effects on the entire ecosystem, often causing a chain reaction of changes that can lead to the collapse of the ecosystem.

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the function of stomata​

Answers

Answer:

The functions of Stomata are given below :

1. It helps in transpiration of water.

2. It helps in exchange of gases.

3. It helps to create an upward pull which helps in the process of absorption of water from the root.

4. It takes carbon dioxide and gives out Oxygen at the time of Photosynthesis.

5. It helps to regulate water movement through transpiration.

Cells blank ensure that cells are ready to progress to the next phase of the cell cycle

Answers

Checkpoint proteins ensure that cells are ready to progress to the next phase of the cell cycle.

These proteins act as gatekeepers that monitor the integrity of DNA, ensure that all required nutrients and cellular components are present, and confirm that the previous phase of the cell cycle was completed successfully. Checkpoints occur at several stages of the cell cycle, including the G1/S checkpoint, the G2/M checkpoint, and the spindle checkpoint.

If a checkpoint protein detects a problem or issue, it will pause the cell cycle, giving the cell time to resolve the issue before proceeding. This ensures that cells only divide when conditions are favorable and helps to prevent the accumulation of DNA damage or other problems that could lead to mutations or disease.

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Asbestos is a material that was once used extensively in construction. One of the risks of working in a building that contains asbestos is the development of asbestosis. The asbestos fibers can be inhaled. Cells will phagocytose (absorb) the foreign material, but are unable to degrade it. As a result, asbestos fibers build up in which of the following cellular organelles?
a. Chloroplast
b. nucleus
c. mitochondria
d. lysosome

Answers

Asbestos fibers build up in lysosome.  The correct alternative is Option d.

Asbestos fibers are unable to be degraded by cells and will accumulate in lysosomes, which are organelles that store cellular waste. The lysosomes are unable to break down the asbestos, leading to the accumulation of the material and the development of asbestosis.


Lysosomes are the organelles responsible for breaking down and digesting foreign materials within cells. However, because asbestos fibers cannot be degraded, they accumulate in the lysosomes and can eventually lead to the development of asbestosis.

Therefore The correct alternative is Lysosome. (Option d)

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Explain how a meander can form a stream

Answers

Answer:

Explanation:

A meander forms when moving water in a stream erodes the outer banks and widens its valley, and the inner part of the river has less energy and deposits silt. A stream of any volume may assume a meandering course, alternately eroding sediments from the outside of a bend and depositing them on the inside.

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