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Biology
GCSE

Describe the differences between aerobic and anaerobic respiration.

Glucose is the main molecule used for respiration and is given the name of 'main respiratory substrate'. It is the main respiratory substrate in both aerobic and anaerobic respiration processes. Aerobi...

Answered by Joe W. Biology tutor
1976 Views

How does a vaccination work?

To start we need to ask: what causes an infection? The answer is a pathogen, which is a microbe that causes disease. These can be bacteria or viruses. A vaccine contains dead or inactive pathogens that ar...

Answered by Jessica S. Biology tutor
1692 Views

Describe the process of evolution by natural selection

Evolution by natural selection occurs through mutations within organisms of the same species that makes every organism slightly different. Those organisms with the favourable mutation for the environment ...

Answered by Tegan I. Biology tutor
1489 Views

How are mineral ions transported into the root cells from the soil?

Mineral ions are transported into root cells by INDIRECT ACTIVE TRANSPORT/UPTAKE. First of all, hydrogen ions are pumped out of the root cells' vacuoles into the soil. This creates a conc...

Answered by Marta S. Biology tutor
7099 Views

What is diffusion, and what are the factors that affect the rate of diffusion

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