Answer:
The correct answer would be - pupils expand or become bigger so more light can enter the eyes.
Explanation:
When Arun crosses the playground he was in a warm and sunny condition where light is more than required so the pupil becomes small in an excess light condition.
So, that less light can enter the eyes and when he enters into a dark auditorium then less light enters in his eye and he can't see a thing and pupil expands and more light enters the eye enabling to see and able to make out the way between the rows of seats
Uh Oh!
Hold on, our servers are swamped. Wait for this question to fully load.
during DNA replication, what unzips the DNA ?
A.mutagens
B.RNA
C.chromosomes
D.proteins
Answer:
Proteins
Explanation:
Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.
How do some economists refer to natural resources?
O labor
Oland
O capital
O all of the above
WILL GIVE U BRAINLYEST
When a human consumes an apple, they are consuming the glucose that
was created during photosynthesis by the plant. This glucose will give the
human energy so they can move their muscles. What kind of energy
transformation is happening when a human uses glucose to move?
A. Chemical to mechanical
B. Solar to chemical
C. Thermal to mechanical
D. Chemical to thermal
Answer:
D I think
Explanation:
In cats, the bones in the legs involved in
walking are very similar to the bones of
whales' flippers that are involved in
swimming. These are examples of -
F: analogous structures
G: homologous structures
H: vestigial structures
J: endosymbiosis
Answers: G
Answer:
Your answer is most likely G), so you are correct.
These are the example of Homologous structure. So, the correct option is (G).
What are different types of structures?Homologous structures are similar in structure and location, but perform different functions, resulting in divergent evolution. For example, An arm of a human, the leg of a dog or a flipper of a whale are all homologous structures.
Analogous structures are similar in function but have different origins and structures resulting in convergent evolution. For example, from wings in birds, bats and insects to fins in penguins and fishes are all analogous structures.
Structures with similar anatomy, morphology, embryology, and genetics, but dissimilar functions are known as homologous structures, while structures that are superficially similar but perform the same physiological function are referred to as analogous structures.
Thus. these are the example of Homologous structure. So, the correct option is (G).
Learn more about Convergent and Divergent evolution, here:
https://brainly.com/question/3405872
#SPJ2
Marc and Dan are twins who like the same activities, and foods. At a recent doctor's appointment, Dan was told that he has type 2 diabetes. He has been feeling good and has not noticed any changes in his health. He does not understand why he has diabetes but this brother does not and why he has not had any noticeable symptoms. How would you explain this to him? Describe what the glycemic index is and how this is very important in developing a nutritional diet.
Answer:
The glycemic index allows people with diabetes to follow a balanced diet by consuming foods with a low glycemic index, which helps to avoid increasing the level of sugar in the blood.
Explanation:
The glycemic index is important to know when a certain food raises the level of sugar in the blood.
A good diet for people with diabetes is determined by foods that have a low glycemic index between 1 to 55; Some of the foods that can help us regulate the level of sugar in the blood are the following:
- Breads and cereals that are exclusively whole grains.
-Legumes like beans and lentils.
-Fruits such as: peach, pear, apples, cherries and prunes.
Which two organs can both chemical and mechanical digestion take place?
A: Esophagus, Mouth
B: Mouth, Stomach
C: Small Intestine, Liver
D: Large Intestine, Stomach
how do scientists calibrate a molecular clock
Answer: mutations that natural selection can work on. 4.) How do scientists calibrate a molecular clock? ... they compare the number of positive mutations that have occurred in a particular species with the number of negative mutations that have occurred
Explanation:
Which of the following sentences best describes osmosis?
A. The cell uses energy to pump molecules across the membrane.
B. Water molecules flow from high to low concentration
C. Water molecules flow from low to high concentration.
D. No cellular energy is required to move glucose molecules across the membrane.
Answer:
D is the correct Answer
Explanation:
it is D because there is a difference bewtween them so watch what you selected please
If a cell has 14 chromosomes, how many chromosomes will each daughter cell have after mitosis and cytokinesis?
Why is this important?
Answer: After mitiosis, each daughter cell will also have 12 chromosomes. Cytokinesis is just the last stage of telophase, where the cell completely forms the two daughter cells. Telophase does not form chromosomes.
Explanation:
If a cell has 14 chromosomes, there are 14 chromosomes in each daughter cell.
What happens in Mitosis?There are four stages of mitosis: prophase, metaphase, anaphase and telophase.
1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres.
2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell)
3) Anaphase: sister chromatids are pulled to opposite poles of the cell
4) Telophase: nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin.
If a cell has 14 chromosomes, there are 14 chromosomes in each daughter cell.
Find more information about Mitosis here:
brainly.com/question/19058180
1. Choose the items that are Inferential Statistics. (Check all that apply)
Give the likelihood of data occurring by chance
Include the mean
Summarize the data
Tell you whether to call your mother about your results
Give a measure of statistical significance
Answer:
A, D, and E is correct
Explanation: I took the test and got this one correct.
The items that are inferential statistics among the options would be:
Give the likelihood of data occurring by chanceTell you whether to call your mother about your resultsGive a measure of statistical significanceThis is largely due to the fact that inferential statistics refer to the branch of statistics that draws conclusions from a set of data. It is as opposed to descriptive statistics which focus on summarizing, describing, arranging, and or categorizing data in such a way that trends are shown at a glance.
Statistical parameters such as mean, mode, and median only measures attributes of data relating to the measure of central tendencies. Data summary is purely descriptiveHence, the items selected are those that are conclusive and not descriptive.
More about types of statistics can be found here: https://brainly.com/question/1135243
Will Give Brainliest
Which of the following events would most likely contribute to lowering the carrying capacity of a population?
A.
an increase in the water supply in the habitat
B.
a decrease in habitats due to human development or natural disasters
C.
an increase in the number of predators who eat the animal
D.
a decrease in the number of females in the population
Answer:
a decrease in habitats due to human development or natural disasters
Explanation:
its right and brainliest
Answer:
For the other person to get Brainliest
Exchange surfaces are surfaces that are adapted to maximise the efficiency of ______ and solute( a substance dissolved in a liquid) exchange across them
Answer:
gas
Explanation:
Answer:
Explanation:
Gasssssssss is the answer have a great dayxx
What are the two alleles for tongue rolling?
Our red blood cells belong to
which of the following groups?
A. prokaryotic cells
EN ANNAMAN HITAM
B. eukaryotic cells
C. animal cells
D. plant cells
What are the products of photosynthesis? .-.
Answer:
products of photosynthesis are glucose and oxygen
what is a neuron ?
( don't answer this please )
Answer: Glia outnumber neurons in some parts of the brain, but neurons are the key players in the brain. Neurons are information messengers. They use electrical impulses and chemical signals to transmit information between different areas of the brain, and between the brain and the rest of the nervous system.
Explanation:
Sorry for answering. i saw an opportunity for 5 points. SORRY!!!!
Mary is a carrier for a mutated gene that causes sickle cell disease. Which of the following statements is true about Mary?
A. If Mary has a child with someone who has sickle cell disease, there is a 50% probability their child would have the disease.
B. If Mary has a child with someone who does not have a mutated sickle cell allele, there is a 25% probability that the child will be a carrier.
C. If Mary has a child with someone who is also a carrier, there is a 50% probability their child would have the disease.
D. Mary has sickle cell disease.
The statement is true about Mary is If Mary has a child with someone who has sickle cell disease, there is a 50% probability their child would have the disease. Thus, option A is correct.
What is Sickle cell anemia?
Sickle cell anemia is a hereditary disease which provides less oxygen to cells due to a change in the shape of red blood cells which fails to carry oxygen to cells.
In sickle cell anemia, the effected or mutated part is the beta gene that normally makes hemoglobin but due to the mutation in the amino acid, the protein formed is defected and fails to perform its normal function.
As mentioned above, it is a heredity diseases and pass from generations to generations.If Mary has a child with someone who does not have a mutated sickle cell allele, there is a 25% probability that the child will be a carrier.
Therefore, The statement is true about Mary is If Mary has a child with someone who has sickle cell disease, there is a 50% probability their child would have the disease. Thus, option A is correct.
Learn more about disease on:
https://brainly.com/question/15693667
#SPJ6
In cats, the allele for black coat color is dominant over the allele for white coat color. If a white cat crossed with a heterozygous cat, what is the expected genotypic ratio? *
10 points
4BB : 0Bb : 0bb
2BB : 2Bb: 0bb
0BB : 2Bb: 2bb
0BB: 0Bb: 4bb
do you think it's possible to bring to life extinct animals from fossils? How do you think that would affect organism that exist today?
Answer:
Answer: Extinct Animals could become invasive, spread disease, outcompete important species, and have unknown effects on the ecosystem.
PLEASEEEEEEEEEEEEEEEE HELPPPPPPPPP
1. Describe the possible fates of blood lactate? (4 mrks)
2. Does gender affect the levels of lactate? If so, Why? (4mrks)
Answer:
1)When the oxygen level is low, carbohydrates break down for energy and produce lactic acid. Lactic acid levels rise with strenuous exercise or other conditions - such as heart failure, severe infection (sepsis), or shock - which reduces the flow of blood and oxygen throughout the body.
2) no gender differences in resting or peak blood lactate concentrations, nor in the rate of blood lactate removal of young adult men and women with similar aerobic fitness level expressed as ml.kg FFW1
Explanation:
..
Which molecule never moves across a biological membrane to any other locations in a cell?
Molecules that cannot easily pass through the bilayer include ions and small hydrophilic molecules, such as glucose, and Macromolecules, including proteins and RNA.
are proteins that are found on the surface of some red blood cells,
PLEASE answer all these questions if you can. 1 attempt for all
1.) Which of the following is true about prophase?
chromatin changes into chromosome form
all of the choice occur during prophase
chromosomes line up at the equator of the cell
cytokinesis occurs
2.) Which of the following is true about metaphase?
chromatin changes into chromosome form
chromosomes line up at the equator of the cell
all of the choice occur during metaphase
nucleolus disappears
3.) Which of the following describes the products of mitosis?
one cell identical to the parent
cell death
two unique cells
two daughter cells that have identical DNA to the parent
4.) What is the role of the spindle during cell division?
to separate the chromosomes
to break down the nuclear membrane
to divide the cell in half
to duplicate the DNA
5.) In what phase of mitosis are chromosomes first visible?
Interphase
Prophase
Telophase
Metaphase
6.) A centromere
holds two sister chromatids together
is an unduplicated chromosome
is half of a duplicated chromosome
forms the spindle fibers
7.) In which phase of meiosis would you see crossing over occur?
Anaphase I
Prophase I
Anaphase II
Prophase II
8.) Oogenesis produces __ viable cell/s, and spermatogenesis produces __ viable cell/s.
4, 2
4, 1
4, 4
1, 4
9) Haploid gametes produced in males are called sperm.
True
10.) Which of the following best describes a tetrad?
the spindle fibers at the end of telophase I
the four cells resulting from meiosis
homologous chromosomes during prophase I
tetrads are not present in meiosis, they are present mitosis
False
Answer:
1. a
2. b
3. d
4. a
5. b
6. d
7.b
8. im not sure abt this one, sry :(
9. yeah, true
10. c
Explanation:
Pro phase is the starting stage of the division where the cell division begins. Spindle fibers are broken into half and the type of division that is present in gametes is reduction division that is the meiosis. Synapsis occurs during mitosis.
What is synapsis ?It is defined as the stage in which the pairing of the homologous chromosomes take place.
Chromosomes do not line at the equator as the lining of the chromosomes at the equator occurs on the stage of mitosis where it is possible to see the V,J and L shapes of the paired chromosomes. After this stage the exchange of genetic material takes place.Chromatin do not change into chromosomes in the metaphase.
Mitosis is present only to make the duplicate copies of the cell. The identical daughter cells are made when the division of mitosis is taking place in the cell. Chromosomes are first visible in the prophase. A centromere holds two sister chromatids together.
In meiosis crossing over takes place in anaphase 1.
Learn more about mitosis at :
https://brainly.com/question/26678449
#SPJ6
Use the drop-down menus to answer the questions.
Which feature contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell?
Answer:
The Nucleus
Explanation:
Prokaryotic cells have DNA (Genetic Material) Floating around in them, but it isn't contained. In Eukaryotic cells, the DNA and other genetic material is stored in the Nucleus of the Cell.
Hope This helped, Please mark brainliest if it did!
Answer:
Nucleus
Explanation:
in a eukatyotic cell there's a Nucleus which contains its genetic material but in a prokaryotic cell there is no Nucleus
Which phrases best identify characteristics of asexual reproduction?
Answer:
C. One parent, NO union of gametes, offspring genetically identical
Explanation:
This is only true for Asexual Reproduction. There is one parent only, no union of gametes, and the offspring is completely identical to the parent.
Hope it helps!
In which way does genetic variation within a population help to ensure the survival of a species in response to the environment in which they live?
PLEASE HELP I WILL MARK AS BRAINLIEST
A.
Genetic variation causes the members of the population to require a different source of food.
B.
Environmental changes which affect one organism within the population may not affect others.
C.
Genetic variation occurs when environmental conditions remain stable for an extended period of time.
D.
Environmental changes decrease genetic variation so that the population experiences fewer adaptations.
Answer:
Genetic variation occurs when environmental conditions remain stable for an extended period of time
Learning Task 1: True or False. Write TRUE if the statement is correct and FALSE if it is incorrect.
Write your answers on the space before the number.
1. Corals are living organisms.
2. Ecosystem can be destroyed by human activities.
3. Mangroves, coral reefs, and rainforest are examples of ecosystem.
4. Destroying the ecosystem can harm humans and other forms of organism.
5. If there is no mangroves forest, then the sea will have no meaning.
Answer:
truetruetruetruetrue/falseExplanation:
i wish this can help you.
Explain why there is such a large difference between the amount of protein
found in the plasma of the glomerulus and the amount of protein found in the
filtrate.
Which statement best compares the aorta and the pulmonary vein?
O Both structures control the flow of blood.
O Both structures are involved in transporting oxygenated blood.
O Both structures separate the left and right atrium.
O Both structures carry plasma back into general circulation.
Answer:
Both structures are involved in transporting oxygenated blood.
Explanation:
Edge 2021
