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Arteries, veins and capillaries are the three types of blood vessels in our bodies. We need blood vessels to carry our blood around the body. The importance of blood
Blood has t...
Accept any two from:
Toxicity
Dosage
Efficacy
side effects
The habitat of the Polar Bears is the arctic. This is a much colder climate than the other species of bear found in the wild. Therefore the Polar Bear has adapted to live in this colder climate. One adapt...
Natural selection is a theory devised by Charles Dickens. Due to the existent of alleles and genetic variation, some organisms will be better adapted for survival in their given habitat. As a result of th...
The alveoli are highly folded in order to increase the surface area available for gas exchange. The thins walls of the alveoli and the supplying capillaries allow for a short diffusion distance, thus incr...
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