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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
4242 Views
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.
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Biology tutor
3537 Views
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
3055 Views
How and why are sperm cells specialised ?
Sperm cells are specialised because they have a specific function in the body- to fertilise the female gamete (egg). Therefore to carry out its job, it has special features typical body cells do not. The nuc...
AS
Answered by
Antonia S.
•
Biology tutor
34454 Views
How can we isolate DNA from cells?
DNA isolation is important for experimental analysis and drug discovery across many biological disciplines. Firstly a cell culture must be homogenised to break down the cells into a uniform liquid, making it...
GC
Answered by
George C.
•
Biology tutor
3051 Views
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