Top answers

Biology
GCSE

Describe the process of natural selection.

Within any population, there is naturally variation between organisms because they all have differences in their genes. The organisms that are best suited to the environment that they live within are most...

OA
Answered by Ollie A. Biology tutor
5792 Views

By which two processes does glucose enter cells in the human body?

Active transport and diffusion

CD
Answered by Chloe D. Biology tutor
2257 Views

Describe the stages used to produce a cloned mammal (5 marks)

The egg cell must first be enucleated through the process of removing the nucleus from the surrogate mother’s egg. An adult cell nucleus from the desired mother is then inserted into the enucleated egg. T...

KW
Answered by Katharine W. Biology tutor
7229 Views

What is the difference between Mitosis and Meiosis?

Mitosis occurs in all human cells, producing two genetically identical daughter cells containing a full set of chromosomes (diploid). This process takes place to replace old cells, in wound healing and in...

OS
Answered by Ottilie S. Biology tutor
2684 Views

Why do cells divide? Why not simply get bigger?

-       Larger cell have smaller SA:Vol Ratio-       Difficulty in exchange materials-       Multicellular more efficient-       Revisit – transfusion, osmosis, active transport

WW
Answered by William W. Biology tutor
2551 Views

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