Which of the following statements best explains why evolution by natural selection is considered a theory and not a hypothesis?

Answers

Answer 1

Natural selection provides the outline of an explanatory theory." Biologists consider it to be a scientific fact that evolution has occurred in that modern organisms differ from past forms, and evolution is still occurring with discernible differences between organisms and their descendants.


Related Questions

Restriction enzymes are used to

Answers

Answer:

Restriction enzymes are used to cut DNA into smaller fragments. Different restriction enzymes recognise and cut different DNA sequences.

Explanation:

Answer:

They cut DNA and each enzyme recognizes one or a small number of sequences and cuts DNA close to those sequences.

PLEASE PLEASE HELP

1. You are given a cell with four chromosomes. Explain what the cells look like in box A and in box B for a chromosomes in melosis. 2. How many chromosomes are in each of the gametes above? 3. When, during meiosis, do cells become haploid? Meiosis I or Meiosis II 4. Explain where in the diagram crossing over can occur. Time Att​

Answers

Answer:

Explanation:

kmferkl;jeiwohjnlwkkihebfkj, dks.wheryjkemnf

Brody and Ethel are arguing about waves. Brody says that waving his hand back and forth is a scientific wave. Ethel says that it is not. Which statement best describes who is correct?

Brody is correct because the wave involves an input of energy.
Ethel is correct because energy is not carried from one place to another.
Brody is correct because the pattern repeats.
Ethel is correct because the motion has no pattern.

Answers

Ethel is correct because energy is not carried from one place to another.

What is a wave?

A wave is a disturbance along a medium which transfers energy. We have to know that wave moves from place to place and must transfer energy in the process.

In this case, Ethel is correct because energy is not carried from one place to another as Broody waves his hand from side to side.

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Answer:

B

Explanation:

Edge 2022

What does it mean to be in the same species

Answers

Answer:

organisms belong to the same species if they can interbreed to produce viable, fertile offspring. Species are separated from one another by prezygotic and postzygotic barriers, which prevent mating or the production of viable, fertile offspring.

How important is it for a cell to maintain the same number of chromosomes? Explain.

Answers

Answer:

It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set. Before mitosis, the chromosomes are copied.

Hope this helps you. Do mark me as brainliest.

How does energy released from the sun reach Earth? How does the sun's energy interact with Earth's atmosphere and hydrosphere?

Answers

Answer:

it realeses its energy through sun rays.

Explanation:

This is because, it's the rays that convey Sun light to the earth.

The process by which a bacteria cell divides into two identical cells is called:

A. Binary Fission

B. Regeneration

C. Cellular Meiosis

D. Fragmentation

Answers

The answer is A. Binary Fission

What are endocrine hormones?
A. Chemical signals from one cell to remote target cells
B. Chemicals for direct cell-to-cell communication
C. Chemicals that cross a gap between adjacent cells

Answers

Answer:

A

Explanation:

Which part of a plant cell absorbs the energy needed for photosynthesis?

Answers

Answer:

chloroplasts is the answer of this question

Answer: Chloroplast

Explanation:

Photosynthesis takes place inside plant cells called chloroplasts

a block of wood has a mass of 6 .0 and a volume of 12 .0 CM what is the density Of the block of wood


Brainly will be given

Answers

Answer:

[tex]\boxed {\boxed {\sf d=0.5 \ g/cm^3}}[/tex]

Explanation:

Density is equal to mass over volume.

[tex]d=\frac{m}{v}[/tex]

The mass of the wood is 6.0 grams and the volume is 12.0 cubic centimeters.

[tex]m= 6.0 \ g \\v= 12.0 \ cm^3[/tex]

Substitute the values into the formula.

[tex]d=\frac {6.0 \ g}{12.0 \ cm^3}[/tex]

Divide.

[tex]d=0.5 \ g/cm^3[/tex]

The density of the wood is 0.5 grams per cubic centimeter.

Complete the following sentence.
While all of the food crops contribute to nutritional health, ___ are the most important to the prevention of famine conditions.

Answers

Answer:

Humanitarian aid are the most important to the prevention of famine conditions

which organism would be numerous in the ecosystem?

Grass
Rabbits
Snakes
Hawks

Answers

Answer:

I think it would be grass.

Explanation:

I am pretty sure it would be grass because there is much more grass on earth then hawks, snakes, and rabbits.

Answer:

I don't think grass count's as for what yr studying.. However, I think its the hawk. Bc if ur where to see who eats who...Bunny>is to>GrassAs for.. Snakes> is to.. Hawks!

Explanation:

Complete the following sentence.
If sweet corn is classified as a grain, and sprouted alfalfa is a pulse, then a summer squash or zucchini purchased at your grocery store would be biologically classified as a ___.

Answers

Answer:fruit

Explanation:

A scientist is examining layers of the
earth and tracking information about
animal fossils found in each layer. For
many of the deeper layers there are
consistently large animal skulls but
there is a sudden shift in the skull size in
one layer and they are all much smaller
at that point for the remaining layers
until the earth's surface. What does this
suggest?

Answers

This suggests that sudden change that occur to the environment cause a different size animal to become the main species of that area.

Why the fossils of small skull organisms were found?

This is because at that particular environment the small skull organisms can survive at that time as compared to big skull animals. The presence of a specific type of fossil in the soil layer shows that the fossil organism live at that time on this area due to the presence of good environmental conditions so we can conclude that environment was good for the small skull organisms at that time.

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what is boiling point in your own words pls

Answers

Answer:

Boiling Point is about 350 - 400 degrees

Explanation:

Answer:

Boiling point is the specific temperature when a liquid boils or when it turns into vapor

Match the following terms:
______ 2. Amino acids A. triplets of tRNA
_____ 3. mRNA B. brings amino acids to the ribosome
______ 4. tRNA C. copies DNA code to take it from the nucleus to the ribosome
______ 5. Codons D. triplets of mRNA
______ 6. Anticodons E. another name for a protein
______ 7. Polypeptide F. building blocks of proteins

Answers

2. Amino acids                 F. building blocks of proteins

3.  mRNA                             C. copies DNA code to take it from the nucleus to the ribosome

4. tRNA                                 B. brings amino acids to the ribosome

5. Codons                             D. triplets of mRNA

6. Anticodons                        A. triplets of tRNA

E 7. Polypeptide                     E. another name for a protein

Amino acids are the building blocks of proteins. Each amino acid attaches to each other and forms the protein chain.mrna copies the DNA and takes it from nucleus to ribosome for translation.codons are triple nucleotide code of mrna which codes for one amino acidAnticodons are triple nucleotide code of trnaprotein is also called polypeptide.

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If heterozygous tall pea plant is crossed (mated) with another heterozygous tall pea plant,what is the genotype ratio of offspring?

Answers

Answer:

75%tall 25%short

Explanation:

picture of my work attached

Explanation:

Option B is the correct answer

which animal would you like to have as your pet​

Answers

Answer:

lion lion lion lion lion lion lion

Explanation:

or dog dog dog dog dog dog dog or cat cat cat

Answer:

white round ducks!

Explanation:

they're cyoot and maybe fluffy!!

What kind of bond is broken and reformed to release energy from food
molecules?
O A. Metallic
B. lonic
C. Hydrogen
D. Covalent

Answers

Answer:

a metallic

Explanation:

because I searched it up

Covalent bond is broken and reformed to release energy from food

molecules.

What is a chemical bond?It is the force of attraction between two atoms so that they can form a compound.It can be of many types.It can be either a covalent bond, ionic bond, coordinate bond etc. What is a covalent bond?It is a bond formed between two atoms when they share electrons in pairs.They can either share one, two or three pairs of electrons forming a single, double or a triple bond respectively.They are the strongest bonds in the living system."For getting energy from food these bonds are broken and reformed."

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I really need help on this, the best one I’ll give the brainlyest answer to.


1. The cell cycle includes the following steps ____, ______, and ____

2. Mitosis includes these
steps in the following order: ______, ________ and ______

3. Why can't a cell grow forever?

4. In cells the ______ ______ increases four times faster than the _______.

5. Label the chromosome in the picture shown

Answers

Answer:

prophase anaphase teraphase

If you find no insects at all in a pond or stream, what can you conclude?

Answers

There all dead then

give reasons why you say males are stronger than females​

Answers

Answer:

if we got a flat tire on the way to the restaurant, there’s no chance she would jack up the car and fit the spare.

Explanation:

TBH THERE NO

Answer: scientifically proven the statement men are stronger than women is false.

but the way I see it is that females tend to act fragile or wimpy where most males are more confident (I think because of the hormone differences)

The density of a substance is 4.0 centimeters if a sample Of the substance Has a volume of 25 Centimeters then what is the mass

Brainly will be given

Answers

the answer is 100 grams. the formula for finding mass is density x volume.
i hope this helps!

If a DNA sequence is T A C C A T G G A A T T A C T, what is the matching RNA code?
A.) T T C A A T G G T C T A G G G
B.) A A C A A U G G U C U A G G G
C.) T A C C A T G G A A T T A C T
D.) A U G G U A C C U u A A U G A

Answers

Answer:

d

Explanation:

there change only tymine in cytosine

Please please help I've been asking this for like an hour! Serious answers please! Will mark brainliest! Explain

Answers

Answer:

the total resistance is 12 ohms

Amps = 1 amp

Explanation:

resistor in series add  so the total resistance is 12 ohms

E=I x R   E = voltage, I = amps, R = resistance

12 = I x 12

I=1

1 amp

resistor in series add  so the total resistance is 12 ohms

E=I x R   E = voltage, I = amps, R = resistance

12 = I x 12

  I=1 is the correct answer

Can some one help me please

Answers

3 one because I read the guys answer on top

Which two organisms most likely have a recent common ancestor? Explain.

Answers

I believe that both the Bat and Humans have the most recent common ancestor. The reason I say this is because both diagrams show a wrist and arm-like structure. Also, they both hold a similar quality of fingers.

Hope this helps and have a nice day.

-R3TR0 Z3R0

What process involves the introduction of recombinant DNA plasmids into a bacterial colony?

Answers

Answer:

Genetic engineering involves the use of recombinant DNA technology, the process by which a DNA sequence is manipulated in vitro, thus creating recombinant DNA molecules that have new combinations of genetic material. ... This recombinant DNA plasmid was then inserted into bacteria.

Explanation:

Utah has the largest concentration of oil shale and tar sands in the United States. Which statement identifies a disadvantage to this location?

Answers

The statement that effectively recognizes the disadvantage of the given location would be:

b). The contamination of nearby bodies of water could occur.

The disadvantage of the location of the maximum congregation of oil shale and tar sands could be the pollution that it can cause to the water bodies that exist in the nearby area. This pollution can affect aquatic life(plants and animals) and the people residing there as well.The mixture of various components like clay, bitumen, sand, etc. can impact the water quality and ultimately the processes in which it is used(industries and household usage).

Thus, option b is the correct answer.

Learn more about "United States" here:

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Answer:

The area is limited in resources for oil extraction.

Explanation:

Although the state of Utah has a large concentration of tar sands and oil shale, it does not have much water nearby (water is a resource needed for oil extraction). This is a huge and pivotal disadvantage, and one of the reasons why tar sands and oil shale in Utah have not been exploited.

PLSS NEED THIS ASPA!!
WILL GIVE YOU BRAINLYEST!!

If the producer trophic level started with 1000 units of energy, what
amount of energy will the primary consumer trophic level have?

A. 1 unit
B. 10 units
C. 100 units
D. 1000 units

Answers

c.) have a good day! :) <3

Answer:

I believe that it would be C because of the 10% rule

Explanation:

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