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Digiron [165]
3 years ago
11

The process of natural selection relies on variation within a population or species and occurs when -

Biology
1 answer:
forsale [732]3 years ago
3 0

Answer:

A

Explanation:

by the definition of natural selection more fit organisms survive and reproduce more, propelling population change.

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Compare and contrast the two cycles of matter
sertanlavr [38]

Answer:

The two cycles of the matter are the carbon and nitrogen cycle. Both of them are biogeochemical cycles, it means that the chemicals spend a portion of the cycle in living things and non-living things. They are also common in that they both recycle nutrients that are essential to all organisms. 

They are different in the manner that they cycle. Nitrogen is huge, 78% of the air around us is nitrogen. It cannot be used by plants or animals. Once the nitrogen is used by the plant and make its way to the animal, it can be released to decomposition. 

Carbon has no requirement in processing by bacteria prior to plants and animals being able to use. Plants take carbon dioxide and make it sugar, animals eat the sugar. Some of it is released carbon dioxide that we exhale.

8 0
3 years ago
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Item
Anon25 [30]

If a cytosine base is substituted for by a thymine base in a DNA segment during DNA replication, the sequence could code for the wrong amino acid during translation.

The change in the sequence of DNA is known as mutation.

When a base substitution occurs in the sequence of a DNA during replication, the genetic information in the region where the substitution occurred becomes compromised.

During transcription, the process of encoding genetic information on DNA into RNA, the base substituted is also transcribed along. If cytosine is substituted by thymine, adenine is transcribed instead of guanine.

During the translation of the genetic codes, the wrong amino acids might end up being translated due to the substituted base, leading to a faulty protein.

More on mutation can be found here: brainly.com/question/4347425

6 0
3 years ago
I need Help with this.<br> Answer it for me plz
kow [346]
It’s D (example a turtle draws its head back into its shell when it’s shell is touched) I’d say it’s kinda of the same as odor (if u already answered it then dang)
8 0
3 years ago
A gastrovascular cavity is a digestive tract with two openings-a mouth and an anus.
dezoksy [38]

the gastrovascular system is also known as the coelenteron, and is commonly known as a "blind gut" or "blind sac", since food enters and waste exits through the same orifice.

so True

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Briefly describe the three main parts of DNA replication? Make sure you
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Explanation is in the file

tinyurl.com/wpazsebu

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