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The passive transport of molecules across a membrane does not require an input of metabolic energy. Rate of the diffusion or transport is proportional to the concentration gradient of the molecule diagonally the membrane. There are two parts of passive transport that are as follows:
1) facilitated diffusion and
2) simple diffusion.
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Why do the sons of a haemophiliac father never vary from this trait? Why is the cleavage in mammals referred as simple homoplastic?
An interesting observation made by an American biologist H.C. Bumpus (1899) provides a good explanation for normalising selection. Bumpus collected some 136 injured house sparrows
Give three examples of diseases caused by bacteria, Diseases caused by bacteria contain tonsillitis, blood poisoning, scarlet fever, tuberculosis, typhoid, diphtheria, food poi
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