ABOUT NATURAL SELECTION

ABOUT NATURAL SELECTION

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Answer 1

Answer:

B

Explanation:


Related Questions

i need help...................

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The answer is polarity

what are the two new cells that form in mitosis called?

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Answer:

chromosomes

Explanation:

Blank is deliberately changed in scientific study

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Answer:

The variable that is deliberately changed is called the independent variable.

Explanation:

The independent variable is the variable that is deliberately changed by the scientist study. The dependent variable is the one observed during the experiment.

Explanation:

The function of the erector spinae muscles is to

Answers

Answer:

support the back’s upright posture.

Explanation:

edge 2020 :)

The major function of the erector spinae muscles is to straighten the backside of your body and provide easy side-to-side rotation.

What do you mean by Muscles?

Muscles may be defined as body tissue comprised of sheets or bundles of cells that contract to create movement or enhance tension.

The erector spinae muscles are located on each side of the vertebral column, which helps in the bilateral contraction and movement of the vertebral column which gives the body a state of rigidity.

Therefore, the major function of the erector spinae muscles is to straighten the backside of your body and provide easy side-to-side rotation.

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Which of the following is true about the Calvin cycle?

a. Rubisco fixes O2 to a carbohydrate molecule.
b. Both ATP and NADPH are needed to make sugars.
c. Light energy is converted to chemical energy.

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Answer: Rubisco fixes O2 to a carbohydrate molecule.

Explanation:

Both ATP and NADPH are required to make sugars in Calvin cycle. In the process of Calvin cycle, the atmospheric carbon dioxide is fixed. Thus, the correct option is B.

What is Calvin cycle?

The Calvin cycle is also called the light independent reactions or the dark reaction of photosynthesis. Calvin cycle is also known as the C3 cycle. It is the second stage of the photosynthesis, in which glucose molecules are synthesized. The Calvin cycle makes use of the products formed in the light dependent reaction of photosynthesis such as ATP and NADPH.

ATP and NADPH are the products of light reaction of photosynthesis which are used to synthesize glucose molecule. In the process of Calvin cycle, carbon dioxide (CO₂) is fixed and not oxygen.

Therefore, the correct option is B.

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Which of the following demonstrates an organ providing a force?

1.The eye transmits information to the brain.
2.The heart contracts and expands to move blood.
3.The kidney filters waste from blood.
4.The skin protects other organs from damage.

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Answer:

I would say the answer would be: 2. The heart contracts and expands to move blood.

Explanation:

The heart is forcing itself to contract and expand so it can move blood throughout the body. If I am wrong, let me know, but I believe that this is correct since it's a function of force.

PLEASE ANSWER
The constructive and destructive forces that change the Earth’s surface are geological, and provide clues about… Question 15 options: How Atlantis was destroyed and sank into the ocean The existence of aliens and their assistance in creating Earth. The make-up of the Earth’s interior The effects of global warming and the annihilation of the human race.

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Answer:

The make-up of the earth's interior.

Explanation:

I took the quiz and got all of them right. Hope it helps!

The existence of aliens and their assistance in creating Earth

Im smert

Gametes are:
O the body cells of an organism
O cells found in prokaryotes
O complex cells found only in plants
O the reproductive cells of an organism

Answers

Answer:

the reprodutive cells of an organism

Explanation:

sex cells= gametes

somatic cells=body cells

simple cells (no nucleus)= cells in prokaryotes

14. At mid-ocean ridges, molten material (magma) rises from the mantle and erupts as fissure volcanoes. The molten material then spreads out, pushing an older rock to both sides of the ridges. This process is called? *

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Explanation:

The process is called sea-floor spreading. Ridges form along cracks (divergent boundaries) in the oceanic crust (Molten rock (magma) rises through these cracks and pushes to both sides.

The Geologic Time Scale is a record of what?

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Answer:

the geologic time scale (gts) is a system of chronological dating that classifies geological strata in time. it is used by geologists to describe the timing and relationships of events in geologic history

Lactase and carbonic anhydrase are examples of what type of substance?
substrate
reactant
product
enzyme

Answers

Answer:

Enzyme

Explanation:

Which are examples of active transport across the cell membrane?
a. osmosis and diffusion
b. diffusion and facilitated diffusion
c. osmosis and chemiosmosis
d. endocytosis and exocytosis

Answers

Answer:

d. endocytosis and exocytosis

Major organs form and cells continue to divide in the __________ stage.
A.
zygote
B.
germinal
C.
embryonic
D.
fetal

Answers

Answer:

embryo

Explanation:

Answer:

c

Explanation:

took quiz

1. Why do some children fall ill more frequently than
others living in the same locality?

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Answer:

Some children fall ill more frequently than other living in the same area due to their weak immunity, or slow immune system response.

some children might have a weak immune system

which is the largest cell​

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Answer:

Neurons are the largest cells.

Even among those, the ones which come out of the spine and reach every part of your body.

And every part of your body is attached to your spine with a single neuron, which is also a single cell.

So from the tips of your finger runs a single neuron which goes all the way to your spine, yes, a single cell which is few feet in length.

Explanation:

The largest cell is Ovum in the human body

The red structure represents a...... ANSWER I WILL MARK BRAINLIEST.

Answers

Answer:

Okay I want to say C. chromosome I'm 9/10 that it's right

Explanation:

hope that helped'

Gametes must be haploid because
two gametes will unite during fertilization to create a diploid cell
fertilization results with a haploid zygote
gametes are small and can hold only the haploid number of chromosomes
the gametes' chromosomes will be replicated prior to cell division

Answers

First one - two gametes will unite during fertilization to create a diploid cell

Due to the fact that two gametes (one from each parent) unite during fertilization to form a diploid zygote, gametes must be haploid, meaning they contain half as many chromosomes as somatic cells of an organism. Therefore, the correct option is A.

When gametes fuse, a diploid cell with a full set of chromosomes is produced, which combines their haploid sets of chromosomes. After cell division and growth, this diploid zygote will form a new human with a full complement of chromosomes in each cell. To preserve proper ploidy during fertilization and subsequent development, gametes must be haploid.

Therefore, the correct option is A.

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Your question is incomplete, most probably the complete question is:

Gametes must be haploid because

two gametes will unite during fertilization to create a diploid cellfertilization results with a haploid zygotegametes are small and can hold only the haploid number of chromosomesthe gametes' chromosomes will be replicated prior to cell division

What are the main atoms of a protein molecule?

Answers

Answer:

Explanation: The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom

Themain atoms of a protein molecule are nitrogen, carbon, hydrogen, oxygen, etc., which are present in an amino acid, and in the protein there is also the presence of sulfur.

What is the significance of the atoms in proteins?

Proteins are found in animal and plant cells and can be consumed by other animals for energy, proteins are made up of amino acids that are linked together by peptide bonds, and in the peptide bonds, the amino group and the carboxylic group make up the peptide bond. The atom's specialty in the protein is that it imparts a unique property to specific proteins, such as keratin proteins, which differ from spider silk.

Hence, the main atoms of a protein molecule are nitrogen, carbon, hydrogen, oxygen, etc., which are present in an amino acid, and in the protein there is also the presence of sulfur.

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What is the function of the electron transport chain in each. Photosynthesis and Respiration.​

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Answer: The primary task of the last stage of cellular respiration, the electron transport chain, is to transfer energy from the electron carriers to even more ATP molecules,

Explanation:

Which statement illustrates bias in scientific research?
A. A zoologist publishes incomplete data on sloths which supports their original hypothesis and notes that more research is required.
B. A botanist publishes data about plant growth that does not support their original hypothesis and is replicable.
C. A microbiologist publishes data funded by the National Institutes of Health that does not support their original hypothesis.
D. An ecologist publishes data funded by a construction company which supports their original hypothesis that an endangered animal's territory is not endangered.

Answers

Answer:

D. An ecologist publishes data funded by a construction company which supports their original hypothesis that an endangered animal's territory is not endangered.

Explanation:

:)

The answer to this question option A: A zoologist publishes incomplete data on sloths which supports their original hypothesis and notes that more research is required.

What this zoologist published tell us of the publishing bias. A research bias is likely to cause wrong results as well as conclusions.

This researcher has incomplete data, this tells us that he made claims that cannot be supported or replicated. Incomplete data makes it difficult to come up with a conclusion.

A publishing bias can happen when there is no significant end result.

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Which of the following is most likely to occur as a result of continued high rates of deforestation in the Amazon Básin?
A
The amount of total carbon dioxide in the atmosphere will increase because of decreased photosynthesis.
B
There will be a decrease in soil erosion in the Amazon Basin because of decreased tree cover.
С
There will be an increase in biodiversity in the Amazon Basin community because of decreased competition for habitat.
D
The amount of total water vapor in the atmosphere will increase because of higher rates of transpiration.

Answers

D is the answer and it should be hello

Deforestation or forest clearance is the removal of a forest or stand of trees from land. Therefore, option (D) is correct.

What do you mean by deforestation?

Deforestation is the purposeful clearing of forested land. Throughout history and into modern times, forests have been razed to make space for agriculture and animal grazing, and to obtain wood for fuel, manufacturing, and construction.

Moreover, the loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for Indigenous people.

Therefore, deforestation refers to the decrease in forest areas across the world that are lost for other uses such as agricultural croplands, urbanization, or mining activities.

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Where is the energy in ATP stored?
O in a chloroplast
O all of the above
O in a chemical bond
o in the mitochondria

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Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP), I think mitochondria.

Why do ears help with balance?

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It's their job to help you balance. The canals are filled with fluid and lined with tiny hairs. When your head moves, the fluid in the canals sloshes around, moving the hairs.
It's their job to help you balance. The canals are filled with fluid and lined with tiny hairs. When your head moves, the fluid in the canals sloshes around, moving the hairs. The hairs send this position information as signals through the vestibular (say: veh-STIB-yuh-ler) nerve to your brain.

Which of the following are examples of sexual reproduction?

A frog releases sperm over eggs that were laid by another frog, and these cells fuse together.
A bacterium copies its DNA and divides into two daughter cells in a process called binary fission.
A yeast offspring grows out of the body of its parent in a process called budding.
A pollen grain from on
e flower fertilizes another flower, resulting in the development of a seed.
A piece of a starfish is broken off and grows into a new starfish in a process called regeneration.

Answers

A pollen grain from on

e flower fertilizes another flower, resulting in the development of a seed.

A frog releases sperm over eggs that were laid by another frog, and these cells fuse together.

hope this helps

16. A diploid cell that enters mitosis with 16 chromosomes will divide to produce ____
daughter cells. Each of these daughter cells will have ____chromosomes.
17. If the diploid number of chromosomes for an organism is 16, each daughter cell after
mitosis will contain_____
chromosomes.

Answers

16. 2;16
17. 16 ....................

One diploid cell produces two diploid cells after mitosis. Therefore, the cell with 16 chromosomes that enters mitosis produces  two daughter cells, each with 16 chromosomes. And If the diploid number of chromosomes is 16, each daughter cell after will contain_16_  chromosomes.

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Mitosis is a process by which, from a diploid somatic cell (2n), two daughter diploid cells (2n) are produced. During mitosis, the cell duplicates and then separates.

There are two principal types of cells in the organism that suffer mitosis: Somatic cells and germ cells that are diploid cells (2n). Germ cells are also in charge of gamete production through meiosis.

Both diploid cells (2n) will end their cycle becoming two daughter cells with the same genetic dotation.

A diploid cell that enters mitosis with 16 chromosomes will divide to produce _two_  daughter cells. Each of these daughter cells will have _16_chromosomes.

Each single cell that suffers mitosis, produces two daugther cells. Each of the daughter cells will have the same chromosomic charge as the original cell -in this case, 16 chromosomes-.

If the diploid number of chromosomes for an organism is 16, each daughter cell after  mitosis will contain_16_  chromosomes.

Diploid number = 2n = 16 chromosomesHaploid number = n = 8 chromosomesEach daughter cell is diploid, meaning that it has 16 chromosomes.

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How many of each element is in (NH3)2SO4

Answers

A fat girl just farted on me

Answer:

3

Explanation:

N nitrogen

H hydrogen

so sulphur oxide

Describe two ways effects on society can impact the decision of whether to mine for resources in certain areas.

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In the certain area that people are looking to mine,it may have lots of people. If there a lots of people,and there is an explosion in the mine,lots of deaths would happen. If there was people with lots of sickness,or a huge hospital in the town this would be bad,because they would be spreading possibly toxic and lethal chemicals inside of the town and killing off all of the people. Truly the main reason for society impacting this is health and money. It may be expensive in this area.

Hope this helped!

-Nea

There may be a large number of people in the area where people want to mine. There will be many deaths if there are many people and there is an explosion in the mine.

What is mining?

Mining is the extraction of useful materials from the earth. Coal, gold, and iron ore are some examples of mined materials. Iron ore is the raw material used to make the metal iron.

Mine exploration, construction, operation, and maintenance may result in land-use change and have negative environmental consequences such as deforestation, deterioration, contamination.

Also, the modification of soil profiles, contamination of local streams and waterways, and an increase in noise and dust.

There could be a large population in the area where people want to mine. If there are a lot of people and there is an explosion in the mine, there will be a lot of deaths.

Thus, this way, effects on society can impact the decision of whether to mine for resources in certain areas.

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asexual reproduction results in genetically different or identical daughter cells?​

Answers

Answer:

Identical daughter cells

Explanation:

Asexual reproduction is producing offsprings from 1 parent so the offspring (kid) will be identical to the parent! :)

Which organelles can be found in both plant and animal cells? A)cell membrane, nucleus, and chloroplasts B)cell wall, cell membrane, and nucleus C)endoplasmic reticulum, cell membrane, and nucleus D) chloroplasts, cell wall, and endoplasmic reticulum

Answers

Answer:

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal element.

What type of boundary is depicted in the image below?

a. transform
b. collisional
C. convergent
d. divergent
Please select the best answer from the choices provided

Answers

Answer:

B-Collisional

Explanation:

Collisional boundary is the type of boundary depicted in the image below and is denoted as option B.

What is Collisional boundary?

This boundary occurs when two land masses meet and they crush together to form fragments.

The image shows the land masses being together and crushing which is why collisional boundary was chosen.

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