Answer:
D. Particle A orbits the nucleus, and Particle B is located in the nucleus
Explanation:
Here since both particles are of the same atom and particle A is much lighter we can infer that Particle A is electron because electrons are much lighter than protons which are Particle B in this case. Thus, particle A orbits nucleus as an electron does and particle B is in nucleus where protons are.
Why do droughts contribute to desertification?
Answer:
Drought and desertification are firmly related phenomenon. Continuing over months or years, drought can influence enormous zones and may have genuine ecological, social and financial effects.
While drought is a characteristic phenomenon, whose effects can be exacerbated by human exercises that are not adjusted to the neighborhood atmosphere, land debasement is the way toward transforming fruitful land into less or non-gainful land. In extraordinary cases in drylands this is called desertification.
Land debasement and desertification are complex phenomenon driven by un-adjusted human action in mix with land and climatic requirements. Improper land use, for example, monocultures, and unreasonable land the board rehearses, for example, deforestation, unsatisfactory agrarian practices and overexploitation of water assets), can cause land debasement that can be additionally disturbed by drought.
Which is a tough and rigid layer that surrounds plant cells, as well as some algal and bacterial cells?
Answer:
its A cell wall
Explanation:
A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or
short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross
of a plant with a genotype GGKk. What possible gametes can the plant
produce?
A) GK, Gk, gk, gK
B) GG, Kk
C) GK, Gk
D) GK, gk
Answer:
Option A
Explanation:
While making a Punnet square, The possible gametes produced are:
=> GK (Green and long)
=> Gk (Green and short)
=> gK (Yellow and long)
=> gk (Yellow and short)
The gametes produces are GK, Gk, gk, gK
A dihybrid cross describes a mating experiment between two organisms that are identically hybrid for two character.A hybrid organism is one that is heterozygous, which means that it carries two different alleles at a particular genetic position, or locus.What is punnett square?The Punnett square is a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given. The Punnett square consists of a square divided into four quadrants.Hence, A option is correct.
To know more about punnett square here
https://brainly.com/question/25357981
#SPJ3
why is rna shorter than DNA?
Answer:
RNA is much shorter than DNA. DNA contains the code for making lots and lots of different proteins as well as DNA contains all the genetic in formation of the body whereas RNA does not contains
Explanation:
i hope this will help you :)
Select the correct answer from each drop-down menu. Temperate grasslands and (blank) are two biomes that are dominated by grass species, share similar wildlife, and have few (blank). However, while temperate grasslands have (blank), the other grassland biome has (blank) .
Answer:
The answer is hot ,mammals
Answer:
Temperate grasslands and tropical savannas are two biomes that are dominated by grass species, share similar wildlife, and have few trees . However, while temperate grasslands have hot summers and cold winters , the other grassland biome has both rainy and dry seasons .
mitosis and meiosis have all off the following in common accept
A both duplicate their DNA first
B both results in genetically identical daughter cells
C both result in cell division
D both have chromosomes line up in the middle of the cell
Answer:
b
Explanation:
I think its b becuase in meiosis it creates 4 daughter cells while in mitosis it only makes 2 daughter cells
Answer:
B
Explanation:
only mitosis produce genetically identical cell
What is the difference between relative and radiometric dating and why is radiometric dating more accurate? SCIENCE
Answer:
Relative age is the age of a rock layer (or the fossils it contains) compared to other layers. It can be determined by looking at the position of rock layers. Absolute age is the numeric age of a layer of rocks or fossils. Absolute age can be determined by using radiometric dating.
Explanation:
Which organism would be classified as an arthropod? crab starfish snail earthworm
Answer: Crab, because an arthropod has no spine but an external skeleton.
Analyze the image below and answer the question that follows. Which line is pointing to the myelin sheath? A. 1 B. 2 C. 3 D. 4 Please select the best answer from the choices provided A B C D
Answer:
d.4 i do believe :)......
The given image is a neuron. Neurons are present in the nervous system. The part which is labelled as 4 in the diagram is myelin sheath. Thus, the correct option is D.
What is a Nerve cell?A nerve cell is a specialized cell which makes the nervous system. This system is responsible for the control of functions in an organism. Neuron (nerve cell) are the basic units of the nervous system.
A nerve cell consists of three parts- the cell body, a major branching fiber which is an axon and smaller branching fibers known as dendrites. The axon has nodes of Ranvier and myelin sheath. The nodes of Ranvier are the gaps which are present in the myelin sheath that coats the neural axon. The myelin sheath permits electrical impulse to move down the axon in a neuron. The nodes of Ranvier allow movement of ions in and out of the neuron that helps in propagation of electrical signals down the axon of the nerve cell.
Therefore, the correct option is D.
Learn more about Neuron here:
https://brainly.com/question/24217914
#SPJ5
a certain kind of plant can have green leaves (G) or yellow leaves (g) and can also have blue flowers (B) or white flowers (b). when a plant with the GgBb genotype produces pollen, what genotypes will be found among the pollen grains? A. Only GB and gb B. Gg, GG, BB, and bb C. GB, Gb, gb, and gB D. Only GB and Gb
Answer:
C. GB, Gb, gb, and gB
Explanation:
During a routine physical exam of a child, the nurse notes an abdominal mass, elevated blood pressure and hematuria. The parents report abdominal pain, fatigue and recent fevers. Which lab value would prompt immediate further investigation and intervention?
Answer:
The signs that indicate immediate intervention would be a constant body temperature greater than 39 degrees, a decrease in blood pressure and heart rate, a decline, difficulty breathing, loss of consciousness.
If the chest pain increases, and the transaminase values also (liver evaluation) are also considered to be risk signs.
Explanation:
All these risk signs would be potentially lethal for the child but much faster than an adult, since it was found that children trigger acute lethal symptoms in less time, which is why the treatment should be done quickly and if possible As invasive as possible to reverse the picture.
Write a hypothesis about the effect of the red light on the population. Use the "if . . . Then . . . Because . . ." format, and be sure to answer the lesson question: "How does natural selection change the phenotypes within a population over time?"
Answer:
Sample Response: If the color of the light in the environment changes, then the number of light red kidney beans increases because the red light makes the light red kidney beans more difficult to see.
Explanation:
its jus the sample response. its not gonna be wrong if the assignment made it itself lol
Answer:
The "if" part of the hypothesis refers to the environmental change.
The "then" part of the hypothesis refers to the phenotype variations.
The "because" part of the hypothesis connects the phenotype variations to the environmental change.
Explanation:
it's the other sample response so it won't be wrong
help plz ASAP!
Which statement BEST describes what has happened to most of the species
that have ever lived on Earth?
A) They are alive today.
B) They are now extinct.
C) They were killed by humans.
D) They were turned into fossils.
The northern spotted owl livesin old growth forests in North America. These types of forests are relatively rae because most have been cut down by humans for timber.
Which factor makes the northern spotted owl most likely to become extinct?
A.) low adaptability
B.) high population size
C.) high variation in its populations
D.) low amount of contact with humans
The black howling monkey is threatened with extinction as a result of deforestion, which occurs when humans cut down or burn forests to convert them to another use.
Which of the following BEST describes why this species may become extinct?
A.) loss of habitat
B.) high adaptability
C.) hunting by humans
D.) low population size
Which two factors contributed to the extinction of many large mammals over the last several million years, including wooly mammoths, saber-toothed cats, and giant ground sloths?
A.) loss of habitat and contact with humans
B.) loss of habitat and low variation in population
C.) low population size and a warming environment
D.) a warming environment and contact with humans
Answer:
1:B) They are now extinct. 4:A.) loss of habitat and contact with humans
2: B.) high population size
3: A.) loss of habitat
The number of chromosomes during meiosis is incredibly important.why is that?
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes, Meiosis also produces genetic variation by way of the process of recombination.
I hope this helps you
Meiosis refers to the process by which a single cell divides twice to produce four haploid daughter cells. These are the gametes, which are sperms in males and eggs in females.
Why the number of chromosomes is important during meiosis?Meiosis is a eukaryotic cell division process. However, the genetic material distributed among the resulting daughter cells is distributed in very different ways by these two processes.
Mitosis results in the formation of two identical daughter cells, each with the same number of chromosomes as the parent cell.
Meiosis, on the other hand, produces four distinct daughter cells, each with half the number of chromosomes as the parent cell.
Because meiosis generates cells that will become gametes (or reproductive cells), this reduction in chromosome number is critical; without it, the union of two gametes during fertilization would result in offspring with twice the normal number of chromosomes.
Thus, we can conclude that the number of chromosomes during meiosis is incredibly important because It allows gametes to have half the original number of chromosomes of the organism.
You can learn more about meiosis here:
https://brainly.com/question/8253366
#SPJ2
What can a person do to limit exposure to X-rays?
Distance and shielding can protect a person from X Ray radiation. An example could be how X Ray technicians go into a room that’s away from you whenever you get an x ray at a hospital. Distance is effective because it can reduce exposure. Hope this helped!
Answer:
To limits exposure of X-rays, One can do the following things:
1) Use a protective shield through which X-Rays can't pass.
2) Prevent X-rays as much as u can.
3) Don't go to places where you doubt the presence of X-Ray Radiations.
4) If not needed, Don't do CT scan.
Differentiate between blood recipient and blood donor
Answer:
A blood donor is a person who donates blood and a blood recipient is a person who receives donated blood.
Explanation:
first person to answer give you Brainliest
In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of years as a result?
The chances for survival of the population are reduced. New food sources are discovered and become the regular diet. Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce. The environment adapts by providing more resources to the growing population, increasing the chances of survival for individuals within the habitat.
Answer:
Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce.
Answer:
Answer:
Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce.
Explanation:
Determine whether the given procedure results in a binomial distribution (or a distribution that can be treated as binomial). If the procedure is not binomial, identify at least one requirement that is not satisfied. The YSORT method of gender selection, developed by the Genetics & IVF Institute, was designed to increase the likelihood that a baby will be a boy. When 150 couples use the YSORT method and give birth to 150 babies, the genders of the babies are recorded. Does the procedure represent a binomial distribution? A. No, because there are more than two categories for each trial. B. No, because the trials of the procedure are not independent. C. Yes, because the procedure satisfies all the criteria for a binomial distribution. D. No, because the probability of success differs from trial to trial.
Answer:
The correct answer is C)
Explanation:
The number of couples who used YSORT method (x) = 150That is, the number of couples who used YSORT method is limited or defined or definite.The probability of giving birth to a boy, for each couple is 1/2 or 0.5The gender of the baby born in each case mutually exclusive (Independent)
We can conclude that the procedure results in a binomial distribution because the assumptions of the binomial distribution are met.
Cheers!
What is true about the most recent ice age?
O A. All life on Earth became extinct.
O B. It occurred during the Precambrian era.
O C. Sea levels rose over 300 feet.
D. Land bridges existed that are now underwater.
The truth about the last ice age: D. There was now a submerged overpass.
An ice age also called an ice age, is a geological period in which thick ice sheets cover vast land areas. These massive ice ages could last for millions of years and could radically change the surface topography of entire continents.
There have been several major ice ages in Earth's history. The amount of sunlight reaching Earth over thousands of years varies considerably, especially at the North Pole and its surrounding northern latitudes. When less sunlight reaches northern latitudes, temperatures drop, more water freezes into ice, and the Ice Age begins. This ice age began about 2.6 million years ago in a period known as the Pleistocene epoch and lasted until about 11,000 years ago. Like everything else, the Last Ice Age brought about a series of glacial advances and retreats. In fact, we are technically still in the Ice Age.
Learn more about the ice age here: https://brainly.com/question/1372410
#SPJ1
The governments of many countries have regulations that are designed to prevent the accidental introduction of nonnative insects into their countries. This is because, in these new habitats, the nonnative insects might
Answer:
Take over
Explanation:
Nonnative species generally come over to a new area and don't have any natural predators. When this happens, they overpopulate and push out native species. This happens in plants, fish, insects, and mammals. Nonnative insects can also carry diseases (mosquitos with malaria and dengue fever)
What basic unit of heredity is found on segments of DNA and are passed on from parent to offspring?
Answer:
Genes
Explanation:
Genes are sequences of nucleotides that determine characteristics. They are passed from parents to offspring.
Gene is basic unit of heredity is found on segments of DNA and are passed on from parent to offspring.
What are the characteristics of gene ?A gene is physical and functional unit of heredity which is made up of DNA.
Genes control both DNA and RNA function.
Some genes codes protein for functional expression of a trait where as some genes do not code for proteins.
In humans, the size of genes ranges from few hundred DNA bases to more than 2 million bases and human have between 20,000 and 25,000 genes.
Each gene have two copies, one is passed from each parent. Only 1 percent of the total genes is slightly different between people.
This is because of presence two different types of allele the same gene which contribute to each person’s unique physical features.
Learn more about gene, here:
https://brainly.com/question/27778777
#SPJ6
Which organelles are found only in plant cells and not in animal cells?
Answer:
Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells. The cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell.
Which phrase describes one type of freshwater wetland? Acidic areas found in northern climates Reservoirs created by dams at the end of rivers Areas of high elevation that feed into river systems Small streams that flow into larger streams and wetlands
Answer:
The correct answer is - Small streams that flow into larger streams and wetlands
Explanation:
Freshwater wetlands are territories where soil is covered by standing water or a territory where the ground is wet. In contrast to estuaries, freshwater wetlands are not associated with the sea. They can be found along the limits of streams, lakes, lakes. Freshwater wetlands are profoundly beneficial situations that help a bounty of micro-invertebrates, crustaceans, fish, frogs and water birds.
There are 4 fundamental sorts of Freshwater Wetlands, Ponds, Marshes, Swamps, and Peat lowlands. A Marsh is generally found close to a stream, lake or flowing waters.
Thus, the correct answer is - Small streams that flow into larger streams and wetlands.
The water that contains the minimum amount of salt dissolved in it is called freshwater. The freshwater wetland consists of swamps, marshes, ponds and bogs.
The correct option is:
Option D. Small streams that flow into larger streams and wetlands.
This can be explained as:
The soil region that is covered with standing or flowing water is called freshwater wetlands.They can be found along streams, rivers and ponds.This type of wetland comprises many small fishes, invertebrates, frogs and birds.Therefore, marsh is the small streams that flow into larger streams.
To learn more about freshwater wetlands follow the link:
https://brainly.com/question/1876228
What does a seed contain? a plant embryo and pollen grains the female reproductive organs a plant embryo and stored food the male reproductive organs
Answer:
A plant embryo and stored food
Please mark my answer as brainliest
which question is most closely related to the field of biology? what is the nearest planet to earth? How many planets are there in the solar system? What is the cause of cancer in mice? How do you design a cheaper automobile?
the most closely related question to biology is what is the cause of cancer in mice and the answer is simian virus
How many planets are there in the solar system? What is the cause of cancer in mice? This question is most closely related to the field of biology.
Define the field of biology?Biology is a branch of science that deals with living organisms and their vital processes. Biology encompasses diverse fields, including botany, conservation, ecology, evolution, genetics, marine biology, medicine, microbiology, molecular biology, physiology, and zoology.
Is biology a good career?Biology is a well-respected degree choice and offers the chance to get up close and personal with all matters of human, animal, and cell life. Biology degrees contain a wide variety of modules, ensuring that you can study something that really interests you and making it a good choice for keen scientists.
Learn more about the field of biology here: https://brainly.com/question/17259533
#SPJ2
Sodium is transported out of a cell through a transport protein from an area of lower concentration to an area of higher concentration with the use of ATP. Which type of membrane transport is involved in this process?
Active transport through a channel protein that is open when ATP attaches and is hydrolyzed to ADP.
Explain how a close relative of an African plant came to be living in the tropical pacific?
4. Cellular respiration does not produce?
a.carbon dioxide
b.water
c.glucose
d.ATP
C6H12O6(glucose)+6O2(Oxygen)⇒6H2O(Water)+6CO2(Carbon dioxide)+ATP(adenosine triphosphate)
As you can see from the reaction above cellular respiration produces carbon dioxide, water, and ATP. But not glucose as it is the substrate of cellular respiration. Therefore the answer is C
what are body building food
Answer:
Proteins
Explanation:
Red meat, peanut butter, protein shakes etc
Answer:
just go on a dirty or clean bluk
Explanation:
2 Points
Which would be an adaptation in a very cold place, but not in a rainforest?
A. Special veins that keep you cool
B. Leaves for flying faster
C. Strong teeth for fighting competitors
D. Fur that blends in with snow
Answer: D
Explanation:
The adaptation that would be in a very cold place, but not in a rainforest, is fur that blends in with snow. The correct option is D.
What is adaptation?
Adaptation is a long-term or short-term change or modification of the body to survive and match the environmental conditions. Adaptation is necessary for every organism to increase its population.
Adaptation is categorized into different types according to the places where animals and plants live. Examples of adaptation are desert plants having thick leaves or no leaves to save water, and snow animals being white to blend in.
The animals living in very cold regions, like the arctic and Antarctica, have white fur to blend with the environment and save from predators.
Thus, the correct option is D. Fur, which blends in with snow.
Learn more about adaptation, here:
https://brainly.com/question/12534888
#SPJ5