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liraira [26]
3 years ago
10

What was happening in history when this mutation took off in parts of Europe and Africa?

Biology
1 answer:
Sergio039 [100]3 years ago
8 0

Answer:seventy-seven thousand years ago, a craftsman sat in a cave in a limestone cliff overlooking the rocky coast of what is now the Indian Ocean. It was a beautiful spot, a workshop with a glorious natural picture window, cooled by a sea breeze in summer, warmed by a small fire in winter. The sandy cliff top above was covered with a white-flowering shrub that one distant day would be known as blombos and give this place the name Blombos Cave.

Explanation:

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The table below shows part of the process of DNA replication:
svp [43]

Answer:

There will be a change in the genetic information that gets transmitted due to the mutation in the complementary strand being used as template in future DNA replication.

Explanation:

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3 years ago
The four types of nitrogen bases of DNA nucleotides are 1________,2______, guanine, and cytosine.
Sonja [21]

Answer:

1. Adenine

2. Thymine

Explanation:

These are the four nitrogen bases of DNA nucleotides. It's just something that you have to memorize in order to be able to successfully study DNA. In case you are asked which base pairs with which, always remember this saying about base pairs: A and T, and, G and C.

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7 0
3 years ago
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Neighboring cardiac muscle cells in the walls of heart chambers have specialized cell-to-cell contacts that electrically and mec
IrinaVladis [17]

Answer:

Neighboring cardiac muscle cells in the walls of heart chambers have specialized cell-to-cell contacts that electrically and mechanically link the cells together, permitting the immediate passage of muscle impulses. These cell-to-cell contacts are called <u>intercalated discs.</u>

Explanation:

Intercalated discs can be described as unique structures present between the cardiac muscles of the heart. The intercalated discs play a major role in making the cardiac muscles contract in a rhythm so that the heart can pump blood in a regular fashion and it hence regulates the effective functioning of the heart. The intercalated discs are the structures that join on cardiac muscle to another and is involved in the transmission of chemical messages between them.

8 0
3 years ago
Why is it hard to find animals in tropical areas?
Rashid [163]

Answer:

Tropical areas are warm and wet causing for animals to want to hide essentially. Also there is a lot of cover for animals to hide in. Usually in tropical areas there are a lot of predators also, another reason for animals to hide.

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3 years ago
Can you get a paperclip to float on water? Does the size of the paper clip matter?
Natali5045456 [20]

Answer:A paper clip can float on water and the size does not matter

Explanation:

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2 years ago
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