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The 3 types of blood vessels in the body are arteries, veins and capillaries. Arteries carry oxygenated blood away from the heart to the rest of the body. Arteries need to maintain a high blood pressure in o...

The heart is divided into two halves - right and left. In each half there are two chambers - an atria and a ventricle, which are connected by a valve. The right atria receives deoxygenated blood from the bod...

The muscle of the right ventricle contracts. This forces the {right atrio-ventricular/tricuspid} valve to close and the {right semi-lunar/pulmonary} valve to open. The blood is pumped through the pulmonary a...

There are 3 factors that can influence the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature. Light intensity influences photosynthesis as light is required during the pho...

Uneven distribution of the hormone auxin in a root tip whereby the plant hormone diffuses in the opposite direction from a source of light. This will trigger the differential growth and elongation of the pla...