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ADH is a hormone made in the hypothalamus and secreted from the pituitary gland. It circulates in the blood to the collecting ducts of the kidneys where it makes aquaporin channels through the collecting ...

There are many ways that animals are adapted to live in dry conditions. First, a decrease in surface area reduces water loss by minimising sweating. They may also have long eyelashes ...

Plant cells have choloroplasts and animal cells do not, plant cells have a vacuole and animal cells do not, plant cells have a cell wall while animal cells only have a membrane

The left ventricle has a thicker muscular wall and therefore produces stronger contractions.

It's very important to maintain the optimum body temperature in mammals, in particular in relation to enzymes and enzyme controlled processes. There will be the optimum temperature for enzymes where they ...