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The hormone auxin causes cells in shoots to grow faster, and cells in roots to grow more slowly. Auxin becomes more concentrated on the side of the plant that is not facing the light, the shaded side. In ...
By definition, diffusion is the movement of particles from a region of high concentration to a region of low concentration. It occurs in liquids and gases where particles can move freely down a concentrat...
A reflex action is the body's rapid, involuntary response to external stimuli, often used in order to protect it from immediate harm. First, a receptor detects a stimulus, such as a heat source which coul...
DNA, deoxyribonucleic acid, is responsible for storing genetic information and is composed of a chain of nucleotides. Each nucleotide is formed by a nitrogen base, a phosphate backbone and a sugar. There ...
Anaerobic respiration involves breaking down glucose into lactic acid in the absence of oxygen.
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