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Eutrophication is a negative impact of the use of fertilisers on aquatic lifeforms. When nutrients from fertilisers (eg nitrate and phosphates) leach from farm fields into the water, this allows fast-grow...

It is important to remember the function of each of the ventricles. Remeber that the left ventricle pumps oxygenated blood around the body, and the right ventricle pumps deoxygenated blood to the lungs. I...

Tidal volume is the normal volume of air inhaled in one breath at rest.

Total vital capacity is the maximum amount of air a person can expel from the lungs after a maximum inhalation. This usually ...

1. Mutations changes triplets/codons after that point and causes a frame shift

2. Changes amino acid sequence after this as it codes for different amino acids 

3. Affe...

1. In myelinated axons, there is action potential/depolarisation only at the nodes.

2. In myelinated axons, the nerve impulses jump from node to node, therefore there is saltatory co...