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Populations naturally vary . (Think of how people in your class vary in height, weight and other features) This variation is brought about by inheritance of genetic material from parents. In organisms that r...

Different parts of the body have very different functions, so it is important that the cells in these different parts have adapted in order to help the functioning to be more efficient. For example, red bloo...

MRI stands for magnetic resonance imaging and uses the application of a magnetic field and radio frequency photons to manipulate the spin state of protons (hydrogen nuclei). Hydrogen is one of the most abund...

1) They put on fat which is a good insulator and allows the animal to retain its heat. 2) The animal in putting on weight will become larger and have a smaller surface area to volume ratio which also decreas...

Meiosis produces 4 haploid daughter cells and is essential for forming gametes that contain one copy of each chromosome. Meiosis allows genetic diversity which gives rise to new combinations of genetic allel...