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Biology
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What are the differences between normal cells and cancer cells?

Cancer cells are not foreign cells, but abnormally functioning body cells, and may therefore escape immune detection, which is one of the reasons why they are so difficult to treat. 

Here are some ...

MN
Answered by Mariana N. Biology tutor
3953 Views

How can urine be used to detect pregnancy?

The hormone Human Chorionic Gonadotrophin (HCG) starts to be secreted six days after conception from a developing embryo. A pregnancy test stick has three bands. In the first are monoclonal antibodies whi...

AW
Answered by Aimee W. Biology tutor
3988 Views

Outline the process of eutrophication

Eutrophication occurs when nitrate fertilisers are carried by ground water into lakes and ponds. The fertliser encourages algal growth in the water, which in turn blocks out sunlight. This causes submerge...

IG
Answered by India G. Biology tutor
4839 Views

What is the differences between mitosis and meiosis?

Mitosis and meiosis are both processes which describe the production of new cells. Mitosis produces 2 daughter cells which are genetically identical to the parent cell. Each daughter cell is ...

JT
Answered by Jennifer T. Biology tutor
445924 Views

Explain the all-or-nothing principle for an action potential.

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