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svetlana [45]
3 years ago
15

When you think of an organism changing its environment, you may think of large animals like humans that leave obvious signs of w

here they have been. However, even very small organisms make an impact on the environment. One small organism makes an impact by burrowing in the soil, helping to mix it and make it more fertile.
What animal helps create more fertile soil?
A) bacteria
B) earthworms
C) fungi
D) slugs
Biology
2 answers:
Volgvan3 years ago
5 0
Earthworms increase the fertility of soil
grigory [225]3 years ago
4 0

<em><u>The correct answer is B. Earthworms</u></em>

<em><u>As they dig and eat their way through the dirt, they leave behind rich soil. Their burrows also help to aerate the soil.</u></em>

<em><u>Brainliest plz</u></em>

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For each of the following statements, indicate
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The plants that were allowed to self pollinate were the F1 plants.

The plants that are true breeding are P generation plants.

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<h3><u>Explanation:</u></h3>

This question is based on the Mendel’s Experiment. Sir Gregor Johann Mendel was the father of genetics who experimented on garden pea plants <em>Pisum</em> <em>sativum</em> to see whether the characters got mixed or not and to know the real cause behind different traits of same character in plants.

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As these plants were crossed between themselves, then the F1 generation showed all tall plants. This is because of the heterozygous plants which showed character of dominant trait. These plants were allowed to self pollinate.

As a result of self pollination of the F1 plants, the F2 plants were 75% tall in number whereas the other 25% short, which gave the phenotypic ratio of 3:1.

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