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Dahasolnce [82]
3 years ago
13

A polygenic trait is controlled by

Biology
2 answers:
kherson [118]3 years ago
8 0

Answer:

A. two or more genes

Explanation:

DiKsa [7]3 years ago
3 0

Answer:

A. two or more genes because most genetic characteristics or traits are controlled by many genes.

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How long is a rat's large intestine and small intestine in cm? and why is one bigger than the other?
Nitella [24]

Answer;

The large intestine is much wider than the small intestine, but it is also much shorter. The small intestine is the longest part of the digestive system.


Explanation;

The small intestine is a muscular tube with three parts; the duodenum breaks down the food, the jejunum and the ileum absorb nutrients and send them into the bloodstream.

The reason why the small intestine is longer than the large intestine and any other part of the digestive system is to ensure maximum and complete absorption of nutrients to the blood stream.

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2 years ago
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Which of the following adaptations allowed plants to disperse their offspring more efficiently on land?
Kruka [31]
A.seeds because if the seed gets into the ground with water and sunlight then it can grow
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4. What is a carbohydrate?<br><br> What can break down a carbohydrate and what does it become?
Drupady [299]

Answer:

simple sugar

Explanation:

when you eat carbs, your body breaks them down into simple sugar

I hope it helps you

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2 years ago
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aa. Aa. AA. Zebra mussels have the following genotypes and phenotypes. Which cross would produce the greatest number of heterozy
lyudmila [28]

Answer: A (AA x aa)

Explanation:

In option (A) both of the parent mussels are homozygotes, for alleles "a" and "A" respectively. Therefore, every single one (100%) of their offspring would be expected to be Aa heterozygotes. Combinations (B) and (D) yield a lower proportion of heterozygotes (50%), and combination (C) yields none at all. Punnett squares follow:

(A)

<u>   |  A      A        </u>

<u>a |  aA    aA      </u>

<u>a |  aA    aA      </u>

<u />

(B)

<u>   |  A      a       </u>

<u>A |  AA   Aa     </u>

<u>a |  aA    aa      </u>

<u />

(C)

<u>   |   A      A        </u>

<u>A |  AA    AA     </u>

<u>A |  AA    AA     </u>

<u />

(D)

<u>   |  A      a        </u>

<u>a |  aA    aa       </u>

<u>a |  aA    aa      </u>

<u />

7 0
2 years ago
Which is the word equation for photosynthesis?
Setler [38]
My guess that it is a
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2 years ago
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