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How does natural selection occur?

A population of organisms exists with a set range of alleles. In an organism, a random mutation can result in the formation of a new allele. Some mutated alleles can be beneficial to an organism, and increas...
TP
Answered by Thendrral P. • Biology tutor
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Why must a cell's genetic material be replicates before nuclear division of the cell? (2 Marks)

The new cell must be a genetically identical copy of the first cell. Both daughter cells must receive a full copy of the DNA.
OT
Answered by Olivia T. • Biology tutor
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Why does food decay faster in hotter climates?

The key to this kind of question is how you word your answer - you vocabulary must be very specific.You are looking to highlight that microbes can respire faster, which in turn lets them reproduce and grow f...
CS
Answered by Conor S. • Biology tutor
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Skeletal muscle is one of the main tissues where glucose is removed from the blood in response to insulin. Name one other:

Liver/Hepatic tissue
Answered by • Biology tutor
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Explain how red blood cells are adapted to carry out their function efficiently.

The main function of red blood cells is to transport oxygen from the lungs to tissues all across the body and to remove the waste gas product carbon dioxide from the body tissues out through the lungs.It is ...
FC
Answered by Faye C. • Biology tutor
3057 Views