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Biology
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What is the difference between meiosis and mitosis?

Meiosis is the process whereby gametes (sex cells), the ova in females and the sperm in males are produced. This occurs when the chromosomes (which there are two sets of in a body cell) are replicated, pr...

MG
Answered by Mary G. Biology tutor
2940 Views

Describe and explain the effect of an increase in muscular activity on the heart rate.

An increase in muscular activity increases the rate of aerobic respiration. As a result, more carbon dioxide is formed in the Krebs cycle and the pH is lowered. This reduction in pH is detected by chemore...

SW
Answered by Shauna W. Biology tutor
3818 Views

Describe what happens in a healthy person when the pancreas detects a rise in blood sugar level.

The pancreas responds by releasing insulin. This causes glucose to move into the cells.

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Answered by Alfie B. Biology tutor
3271 Views

Explain how shivering helps to raise a persons body temperature.

Shivering involves rapid contracting and relaxing of the muscles. This requires energy and so the muscle cells respire in order to release this energy in the form of heat.

AB
Answered by Alfie B. Biology tutor
4243 Views

Describe blood flow through the heart

The heart is made of cardiac muscle and is split into 4 chambers known as atria and ventricles.Low pressure, deoxygenated blood from the tissue enters the right atrium via the superior and inferior vena c...

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Answered by Claire H. Biology tutor
4636 Views

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