Biology

Biology

Respiration

(a) (i) Complete the following equation, which is a summary of aerobic respiration. C6H12O6 + 6O2 (ii) Aerobic respiration is a two-stage process. The first stage takes place in the
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Biology

Heart

(i)What is the average resting rate of the human heart in beats per minute? (ii) State one factor that decreases heart rate and one factor that increases it. (b) The
Biology

Excretion in Humans

The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent