Answer:
The nucleolus is considered as the brain of the nucleus. It occupies around 25% of the volume of the nucleus. It is mainly involved in the production of subunits which then together form ribosomes. Therefore, nucleolus plays an important role in protein synthesis and the production of ribosomes in eukaryotic cells.
The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
Explanation:
what do we call the chemical substances necessary for an organism to sustain life A. energies B. nutrients C. supplements
Answer:
B. nutrients
Explanation:
Nutrients are chemicals present in all living things on Earth. They are essential for the lives of humans, plants, animals ,and all other species. Nutrients help remove food that provides energy to the species. Carbon, hydrogen and oxygen are the most essential nutrients which they need.
Hence, option B is correct as it is necessary for sustain the life of an organism
Answer: B.
Explanation: Nutrients are chemical substances found in every living thing on Earth. They are necessary to the lives of people, plants, animals, and all other organisms. Nutrients help break down food to give organisms energy. The most important nutrients they need are carbon, hydrogen, and oxygen.
During handwashing, how do you turn off the water?
Answer:
Well you can use your elbow to turn it off.
Answer:
I use my hands
Explanation:
I turn the water on, then rinse my hands, get the soap, rinse them off, and them turn the water off and dry.
What is the purpose of using reverse transcription
Answer:
reverse transcriptase (RT) is an enzymeused to generate complementary DNA (cDNA) from an RNA template, a process termed reverse transcription. Reverse transcriptases are used by retroviruses to replicate their genomes, by retrotransposon mobile genetic elements to proliferate within the host genome, by eukaryotic cells to extend the telomeres at the ends of their linear chromosomes, and by some non-retroviruses such as the hepatitis B virus, a member of the Hepadnaviridae.
Explanation:
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Assignment: 02.03 Oceans Impact on Weather
What percent of the energy animals get from
food is lost as bodily waste?
Answer:
roughly 90 percent of stored energy is lost as waste heat each time
Answer:
In general, roughly 90 percent of stored energy is lost as waste heat each time you go up the food chain by one trophic level. In other words, animals, on average, convert just 10 percent of the energy available from the organisms they eat into stored chemical energy.
Explanation:
Give the names of two co- enzymes that take part in the cellular respiration.
Answer:
Explanation:
Two of the most important and widespread vitamin-derived coenzymes are nicotinamide adenine dinucleotide (NAD) and coenzyme A. ... When NAD loses an electron, the low energy coenzyme called NAD+ is formed. When NAD gains an electron, a high-energy coenzyme called NADH is formed.
n
Which words and phrases in the sonnet indicate that the
tone is satirical? Select two options.
Albo
"My mistress"
"black wires"
"damask'd"
Read Shakespeare's "Sonnet 130."
My mistress' eyes are nothing like the sun;
Coral is far more red, than her lips red:
If snow be white, why then her breasts are dun;
If hairs be wires, black wires grow on her head.
I have seen roses damask'd, red and white,
But no such roses seel in her cheeks;
And in some perfumes is there more delight
Than in the breath that from my mistress reeks.
I love to hear her speak, yet well I know
That music hath a far more pleasing sound:
I grant I never saw a goddess go,
My mistress, when she walks, treads on the ground:
And yet by heaven, I think my love as rare,
As any she belied with false compare.
O "reeks"
"false compare"
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which words in the sonnet indicate that the tone is satirical ?
Answer:
"black wires"
"reeks".
Explanation:
William Shakespeare's "Sonnet 130" is a satire or mocking critique of the conventional sonnets that writers write. In this sonnet, he talks of a young lady who is short of conventional beauty ideals.
In the given lines from the sonnet, the poet/ speaker talks of his mistress whose "eyes are nothing like the sun" and he keeps on describing her features as opposed to one praising his lover. Rather, the speaker in this sonnet uses the negative descriptions in describing his mistress, like calling her hair "black wires" and her breath "reeks", far from the delightful perfumes that a lady is supposed to exude.
Thus, the two words that have a satirical tone in the sonnet are "black wires" and "reeks".
Answer: “black wires” and “reeks”
Explanation:
correct on edge 2020
during photosynthesis, the energy fro. Sunlight is used to split water molecule. What happens to the hydrogen ions that are split from water molecule
Answer:
Hydrogen ions are transported across the thylakoid membrane. Hydrogen ions diffuse through a protein channel.
Explanation:
Determine whether or not a rose is alive and, if not, what characteristic of life is
it missing?
A. No, it is missing the characteristic of movement.
B. No, it is missing the characteristic of being made of cells.
C. Yes
D. No, it is missing the characteristic of responding to stimuli.
Answer:
d
Explanation:
NO, the rose is missing the characteristic of responding to stimuli, so it's not alive.
What are the characteristics of life?
All living things share a number of essential traits or abilities, such as order, environmental sensitivity or responsiveness, reproduction, growth and development, regulation, homeostasis, and energy processing. These qualities help to define life.
Reproduction: In order to be regarded as alive, an object must be able to reproduce and produce children.HeredityHeredity is the capacity of parents to transmit genetic material (DNA) to their children. This can take the shape of genotypic qualities as well as phenotypic traits, which describe how a living thing appears on the exterior.Cellular OrganizationAll living organisms are organized cellularly and are made up of one or more cells.Growth and DevelopmentAll living things grow and develop as they age, becoming more physically and psychologically mature.Adaptation Through EvolutionEvery living thing has undergone some level of evolution, and they all continue to do so in order to adapt to a constantly changing environment.Response to StimuliLiving things react to environmental stimuli.Homeostasis A living thing's capacity to maintain steady internal conditions, such as blood pressure, body temperature (thermoregulation), and water balance inside cells, is known as homeostasis.MetabolismAn organism must use chemical processes to break down and/or use materials from the environment in order to maintain its function, which is known as metabolism.
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They need
air, light and
warmth.
Explanation:
Yeast is the answer. It can be any type of microbe
Which macromolecules provide instructions for growth? O A. Lipids O B. Nucleic acids O c. Carbohydrates O D. Proteins
Answer:
B
Explanation:
The macromolecule which provides instructions for growth is nucleic acids. The correct answer is option B.
Macromolecules are large molecules made up of smaller subunits called monomers. There are four main types of macromolecules found in living organisms:
carbohydrateslipidsnucleic acidsproteins.Nucleic acids are macromolecules that store and transmit genetic information. DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are the two main types of nucleic acids. DNA contains the genetic instructions for the development and function of all living organisms, while RNA plays a key role in the process of protein synthesis. When cells divide and grow, they must replicate their DNA so that each new cell receives a complete set of genetic instructions.
Therefore, nucleic acids provide instructions for growth. Option B is the correct answer.
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How could a scientist use the scientific method to learn more about the Cretaceous era?
First, it is necessary that this scientist decide on what point of the Cretaceous period he wants to study. Among several points he may want to study the evolution of microorganisms of that time, the life of a dinosaur species, or the evolution of dinosaurs, the flora that was established during this period, among others. This is the phase of the scientific method called Observation.
After that, he must enter the phase called "Elaboration of hypotheses" where he will raise questions about the point he decided to study. "How many flower species existed in that period?", "How many of these flowers can we observe today?" among others.
After that, he will enter the phase called "Experimentation", where he will establish a type of experiment and all the experimental factors and variables that will allow the hypotheses to be answered.
After the experiment he will collect the data that will be analyzed and that will give results that will answer the hypotheses previously established. This is the phase called "Analysis of the results".
At that moment, he will be able to reach the last phase of the scientific method, the phase called "conclusion", where he will show the conclusions that the experiment allowed to be established.
The Cretaceous period was a prehistoric period that took place between about 140 and 60 million years ago. If a scientist wanted to use the scientific method to learn more about this time, he should implement the following steps:
Identify an unresolved issue or problem that you would like to address. Make a hypothesis that raises answers to these questions or problems. Carry out a series of investigations and experiments dedicated to verifying the hypotheses raised. Finally, having verified the hypotheses, propose a law or rule for the investigated questions.Learn more in https://brainly.com/question/19496416
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If a man has red-green color blindness, a sex-linked dominant trait, what is a possible genotype of his father? I. XR Y II. Xr Y III. XR XR IV XR Xr A. Only III B. I and III C. I and II D. I, III, and IV
Answer:
C
Explanation:
The possible genotype of his father is [tex]X^RY[/tex] and [tex]X^rY[/tex].
For sex-linked traits, an affected man always inherit the affected allele from the mother. The other chromosome, which is the Y chromosome is always from the father and this confers maleness on individuals.
The father of a man affected for a sex-linked trait can be affected for the same trait or otherwise. It does not have any bearing on the male child since the father only donates the Y chromosome to the male child.
Hence, in this case, the father can either be affected for the same trait ([tex]X^RY[/tex]) or be free from it ([tex]X^rY[/tex]).
The correct option is C.
an error occurs when the DNA of a cell is copied. However, the cell does not divide after the error is detected. which statement best describes the cell cycle for this cell?
a-an error during the G1 phase is corrected during G2 phase
b-an error during the s phase is corrected during G2 phase
c-an error during the G1 phase is corrected during the s phase
d-an error during the s phases is corrected during mitosis
Answer:
An error during the S phase is corrected during the G2 phase.
Explanation:
Why the S Phase Is Important
DNA synthesis must occur rapidly, as the unpaired base pairs of the DNA strand during replication are vulnerable to harmful mutagens, which can lead to genetic abnormalities, cell disease or even cell death
ONLY ONE ANSWER!!
Which is one effect that would most likely result from a tsunami?
death
drought
extinction
genetic change
One of the consequences of tsunami happening in a place would be death and destruction of biodiversity.
What is a tsunami?A tsunami is a natural disaster caused by multiple waves in water bodies that send large volumes of water inland.
The sudden displacement of water with a large force destroys lives and properties on land, especially the coastal lands.
Thus, one of the surest effects of tsunamis is death.
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explain why traits that aren’t present in either parent could show up in the offspring or in future generations of the offspring.
It can show because it can be a recessive trait that can be showed up in ones genes. Recessive traits can be less present in parent parents but if both parents have similar recessive traits it can be able to show up in offspring and future offspring. Also it can show in offsprings because of earlier generations. The parents might not have these traits but grandparents are great grandparents might have the traits.
c. After about half an hour, what
change, if any, would
you
expect to find in the cobalt
chloride paper placed on the
dorsal and ventral surfaces
of the leaf? Give a reason to
support your answer.
Answer:
It would melt
Explanation:
Because of the chemical
If a plant has a high concentration of minerals inside its root cells, but does not have enough energy for active transport, what could happen to the minerals?
Answer:
The minerals will not be move or transported to other part of the plants because active transport require energy.
Explanation:
Active transport is a process where molecules and ions are move against a concentration gradient by using energy.
This process require energy, for ions or molecules of minerals to be taken up by plants, it is first moved to the root hairs where they are in high concentration against in dilute concentration on soil Active Transport then occur in the roots where it is taken up to the plants with the use of energy.
If there is not enough energy, active transport will not occur and the minerals will remain in the root hair and will not be move to other part of the plant.
Eukaryotic cells of humans and animals possess a selective advantage in the fact that
they are capable of both aerobic and anaerobic cellular respiration.
Consider the following statements:
1) Anaerobic respiration allows glycolysis to continue
II) Anaerobic respiration generates more ATP per molecule of glucose
III) Anaerobic respiration regenerates NAD+
IV) Anaerobic respiration prevents the build-up of excess oxygen in the mitochondria
V) Anaerobic respiration results in the removal of a molecule of carbon dioxide per molecule of pyruvate.
Which of the statements best reflects this selective advantage?
A) I and II
B) I and III
C) II and IV
D) I, III, and V
E) II, III, and IV
Which of the following shows steps that happen to the chromosomes in Meiosis in the correct order?
Answer:
Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.
Which of the following describes the function of carbohydrates? A. Carbohydrates store hereditary information. B. Carbohydrates help leaves absorb the sun's energy. C. Carbohydrates surround and protect internal organs. D. Carbohydrates store energy in their bonds.
Answer:D. Carbohydrates store energy in their bonds
Explanation:
The C—H bonds found in carbohydrates store energy
Answer:
D
Explanation:
AP3X
How is sexual orientation different from gender?
Answer:
sexual orientation is how you feel and what genders you are attracted to sexually (straight, bisexual, lesbian, etc) gender is what you were born as or who you identify as.
Explanation:
Use this link to read about the tundra biome, then answer the question provided. Describe animal interactions that affect populations in the tundra ecosystem.
Answer:
Animals that are interact in tundra ecosystem are Owls, foxes, wolves, polar bears, caribou, lemmings, and hares.
Explanation:
Animals that are found in tundra ecosystem have some special adaptation to survive the extreme cool temperature. this ecosystem consist of producer, herbivores and carnivores. Owls, foxes, wolves, and polar bears are carnivores which are present in low population while caribou, lemmings, and hares are herbivores which present in large number. These herbivores are the food of carnivores. And these herbivores feed on grasses present in tundra ecosystem.
Answer:
Animals have adapted to the harsh weather conditions and long winters of the tundra.
Animals migrate to eat insects that live there year round.
Many animals in the tundra hibernate during the long, cold winter months.
Animals are most active in the short summer as the snow melts and shallow wetlands form.
Explanation:
Briefly describe two ways in which the Hardy-Weinberg equation can be used to get information about a population.
Answer:
The Hardy-Weinberg equation can be used to gather valuable information about a population in the following two ways:
1) Estimating allele frequencies: The Hardy-Weinberg equation allows scientists to estimate the frequency of specific alleles within a population. By comparing the observed frequencies with those predicted by the equation, researchers can determine if the population is in genetic equilibrium, meaning that the allele frequencies are stable and not evolving over time.
2) Identifying evolutionary forces: If a population deviates from the expected Hardy-Weinberg equilibrium, it suggests that one or more evolutionary forces, such as natural selection, genetic drift, gene flow, or mutation, are at play. By analyzing these deviations, scientists can gain insights into the factors influencing the genetic makeup of the population and better understand the evolutionary processes driving changes in the population's gene pool.
Explanation:
Can someone please help me
Answer:
Trypsin
Explanation:
Rennin has an optimum pH of 3.4.
Pepsin has an optimum pH of 2.0.
Trypsin has an optimum pH of 7.5.
Salivary amylase has an optimum pH of 6.5.
Enzyme Y is Trypsin.
HELP !!!!
Which of the following statements is true of meiosis?
Answer:
The answer is option D.
it divides one diploid cell into four haploid cells
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How are Dobzhansky and Mayr's ideas about the origin of species similar to Darwin’s?
Answer:
evolution of new species is linked to environmental changes
Explanation:
might help
Which is not likely to be studied by a biologist?
Answer:
there are many things that are not studied by biologist such as physics, figuring out new elements
Explanation:
biologists are people that study peoples life
Answer:
clouds
Explanation:
Which statement is an example of a scientific theory? A. The Earth is the third planet from the Sun and has one moon, which orbits the Earth. B. Hummingbirds do not like the color white because they visit other colored flowers more often. C. All living organisms are composed of one or more cells, which came from pre-existing cells. D. The amount that caffeine affects a person's heart rate differs based on the person's age.
Answer:
D: The amount that caffeine affects a person's heart rate differs based on the person's age.
The theory of plate tectonics helps to explain _____.