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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 ...

Answered by Fatema R. • Biology tutor

2331 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 ...

Answered by Hishaam M. • Biology tutor

3138 Views

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 dioxid...

Answered by Rabia K. • Biology tutor

1666 Views

Write the balanced symbol equation for aerobic respiration

The word equation is:glucose + oxygen = carbon dioxide + water So the symbol equation is:C₆H₁₂0₆ + 0₂ = CO₂ + H₂0However this is not balan...

Answered by Julius C. • Biology tutor

19394 Views

What is the structure of a protein?

Proteins are a class of molecules made up of small sub-units called amino acids. Every type of protein has a unique structure. The primary structure of a...

Answered by Joanna B. • Biology tutor

1724 Views