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What is a gene?

A gene is a section of DNA that codes for a specific protein.
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Answered by Bethany C. • Biology tutor
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What is the difference between aerobic and anaerobic respiration?

Aerobic respiration takes place when oxygen is present, whereas anaerobic respiration takes place when oxygen is absent. Both processes take place in the mitochondria within the cells and releases energy.
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Answered by Bethany C. • Biology tutor
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What are emergent properties?

Multicellular organisms show emergent properties; these are properties that exist due to many different components working together. For example, your lungs work and help you breathe due to all of the cells ...
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Answered by Helen A. • Biology tutor
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Why is the overuse of antibiotics dangerous?

It can lead to an increase in the population size of strains of antibiotic-resistant bacteria, such as MRSA
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Answered by Suzy A. • Biology tutor
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Outline how nerve impulses are transmitted along a nerve fibre.

1. Sodium (voltage-gated) channels open and Na + diffuse into neuron (down concentration gradient). 2. Inside of neuron becomes positive compared to the outside, so potential is reversed = depolarization. 3....
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Answered by Paulina W. • Biology tutor
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