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lorasvet [3.4K]
2 years ago
14

HI GUYS VRY BORING. ANYONE ONLINE​

Biology
2 answers:
kiruha [24]2 years ago
7 0

Answer:

hiii hru I want to talk with you

grin007 [14]2 years ago
5 0

Answer:

yess I'm online btw hru

have a nice day

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.What might happen to cells with DNA that has been damaged by an environmental influence such as UV light from the sun or a tann
VARVARA [1.3K]

Answer:

It can lead to melanoma or a time of skin cancer.

Explanation:

This is because UV radiation in sunlight can destroy the DNA by destroying the base pairing. UV light will cause two Thymine that are very closer to each other to join together to produce dimer. After which, The melanin-assisted process form lesions that is popularly called cylobutane pyrimidine dimers in DNA, which can result in mutations that cause melanoma which is a form of skin cancer

5 0
2 years ago
Which form of natural selection on polygenic traits results in the creation of two distinct phenotypes? A. Directional selection
mojhsa [17]

Answer;

-Disruptive selection

Disruptive selection results in the creation of two distinct phenotypes.

Explanation;

-Disruptive selection is a type of natural selection that selects against the average individual in a population. The make up of this type of population would show phenotypes of both extremes but have very few individuals in the middle.

-The variance of the trait increases and the population is divided into two distinct groups. The disruptive selection will cause organisms with intermediate traits to reproduce less, and will allow those organisms with extreme traits to reproduce more.

5 0
3 years ago
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"if a bacterium cannot use citrate, what result will occur in citrate agar?"
Annette [7]

If a bacterium cannot use citrate agar will not change its color (stays green). On the other hand, if bacteria have the ability to use citrate, the medium will change its color from green to blue.

This happens because citrate agar contains pH indicator such as bromothymol blue which transforms from green to blue in alkaline conditions.


3 0
3 years ago
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Please help me, I will give you extra points for this. How about 20?
DochEvi [55]

Answer:

Explanation:

4-a

2-d

3-b

1-c

7 0
3 years ago
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Explain two reasons why estuaries are so ecologically important and economically important.
stepan [7]
The Economy<span> and Environment. </span>Estuaries<span> are </span>important<span> natural places. They
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3 0
3 years ago
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