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dexar [7]
4 years ago
7

How does the Grants research help prove Darwins theory of evolution by natural selection?

Biology
1 answer:
KATRIN_1 [288]4 years ago
7 0

Answer:

The Grants wanted to find out whether they could see the force of natural selection at work, judging by which birds survived the changing environment. For the finches, body size and the size and shape of their beaks are traits that vary in adapting to environmental niches or changes in those niches.

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Which Characteristic Of Life Is Shown When a Eukaryotic Cell's Genetic Material Divides?
11111nata11111 [884]

The answer is B. Reproducing

5 0
4 years ago
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A client with right sided hemiparesis has limited mobility. which action should the nurse include in the plan of care to help ma
SVEN [57.7K]

The client with right sided hemiparesis has limited mobility because the mobility of the skin is due to change in position of the skin and the tissues that are underlying it.  

The nurse will move each joint through its range of movement which will improve the mobility of the joints. Adequate hydration is also required to maintain the integrity of the skin.

Massage also helps in restoring the circulation of that particular area.






4 0
4 years ago
A geneticist is studying two traits in the fruit fly - eye color and wing shape. They perform a dihybrid cross. If the genes for
Len [333]

Answer:

3/16

Explanation:

<u>According to Mendel's law of independent assortment of genes, when a dihybrid cross involves two genes that assort independently and one of the parents is dominant for the two genes and the other is recessive, the phenotypic ratio of the offspring at F2 would be 9:3:3:1</u>. The proportion of the offspring with the dominant parental traits would be 9/16, those with the recessive parental traits would be 1/16, while those with mixed traits would be 3/16 each.

Assuming the eye color is represented by E and the wing shape is represented by W. At F2

     EeWw    x    EeWw

E_W_ - 9/16 (dominant for both eye color and wing shape)

E_ww - 3/16 (dominant for eye color and recessive for wing shape)

eeW_ - 3/16 (recessive for eye color and dominant for wing shape)

eeww - 1/16 (recessive for both eye color and wing shape)

<em>Hence, the proportion of the offspring with dominant phenotype for eye color and recessive phenotype for wing shape would be </em><em>3/16.</em>

3 0
4 years ago
Dr. Bob hypothesizes that drug X causes cuts to heal more quickly. He performs a medical experiment on a group of 100 people and
katrin2010 [14]

Answer:

The correct answer will be option-D.

Explanation:

In the given question doctor used the scientific method to understand and explain the natural phenomenon.

The scientific method involves various steps like making an observation followed by background research, predicting a hypothesis and performing tests to test the hypothesis. These steps have been performed by the doctor.

After these steps the doctor will analyse the result and reach to the conclusion. This would be followed by publishing the results in a scientific journal where it would be reviewed by the fellow scientists.

Therefore, the next step will be publishing the result and thus option-D is the correct answer.

3 0
3 years ago
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I need to know 3 examples of producers in a desert habitat because i need to create a poster with an ecosystem of a deert
TiliK225 [7]

Answer:

Cactus (Cacti) Joshua Tree (Trees), Desert Lily (Flowers)

Explanation:

The producers I have mentioned are all plants and produce either food or oxygen.

3 0
3 years ago
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