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What are the X and Y chromosomes?

Really simply, they are the chromosomes which decide whether you’re a boy or a girl. In total we have 46 chromosomes so 23 pairs which sequence everything about us- from the colour of our eyes to the how tal...
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Answered by Fatema R. • Biology tutor
3566 Views

Why does bacteria and sewage cause the death of fish?

This question can be broken down. Sewage contains organic matter which can be broken down, and bacteria need nutrients which they can get from digesting organic matter. Any form of digestion with aerobic bac...
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Answered by Hishaam M. • Biology tutor
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Explain the differences between aerobic and anaerobic respiration (in animals), when the transition occurs and why there is a need for the body to remove lactic acid that is built up during the process?

Respiration occurs within the mitochondria, an organelle in all our living cells. Aerobic respiration occurs when there is sufficient oxygen for the body to completely breakdown glucose into carbon dioxide a...
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Answered by Rabia K. • Biology tutor
2361 Views

Write the balanced symbol equation for aerobic respiration

The word equation is:glucose + oxygen = carbon dioxide + water So the symbol equation is:C 6 H 12 0 6 + 0 2 = CO 2 + H 2 0However this is not balanced, the balanced symbol equation is:C 6 H 12 0 6 + 60 2 = 6...
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Answered by Julius C. • Biology tutor
29200 Views

How does oxygen enter the body?

Breathe in, you can feel your chest expanding and your body lifting up. When you breathe in, oxygen in the air around us moves into our lungs. The air moves through tubes called bronchi which branch, like a ...
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Answered by Georgia S. • Biology tutor
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