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Biology
GCSE

What is the difference between aerobic and non-aerobic respiration?

Aerobic respiration requires oxygen from the air, whereas anaerobic respiration does not. Aerobic produces Carbon dioxide and water, and the carbon dioxide exits through a gas exchange system in humans. A...

HW
Answered by Hannah W. Biology tutor
5175 Views

How do viruses cause disease?

A virus is an example of a pathogen. Pathogens also include bacteria, fungi or protists, and all are capable of causing infectious disease. Viruses are very small, much smaller than bacteria. They consist...

KG
Answered by Kavindi G. Biology tutor
11800 Views

Explain how changes to the guard cells on the warm day help the plant to survive

the points you need to get accross here are;

-on a warm day, there will be more evaporation from the plant,

-therefore the guard cells will close around the stomata so that the plant will no...

ES
Answered by Ella S. Biology tutor
15209 Views

Why does the breathing rate increase during exercise?

The breathing rate increases at the start of exercise then reaches a peak and plateaus during exercise. After exercise the breathing rate will gradually fall, but this may take several minutes.

Dur...

AM
Answered by Ayushi M. Biology tutor
9321 Views

Describe the functions of the following components of an animal cell: nucleus, mitochondria, and the cell membrane.

The nucleus is where the genetic information of the cell is stored as DNA; the instructions for the cell's activity. The mitochondria provide energy for the cell through the process of respiration, and th...

LA
Answered by Lucy A. Biology tutor
3101 Views

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