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Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration through a selectively permeable membrane.
The pupil constricts (becomes smaller) to decrease the light entering the eye. This prevents damage to the eye.
A genotype refers to the combination of alleles present that give rise to a certain characteristic.A phenotype refers to the actual physical characteristic as it is seen.An example would be whereby a flow...
Blood will flow between the right and left ventricles. This means that both sides of the heart will contain a mixture of oxygenated and deoxygenated blood. Therefore, the blood sent around the body via th...
Definition of enzymes: Biological catalysts that speed up the rate of reaction by lowering the activation energy , with no effect on equilibrium. They are proteins that have a specific shape . For the enz...
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