The hole in the centre where light enters

Produced by the ovaries. Causes the lining of the uterus to grow. Stimulates the release of LH (which causes ovulation) and inhibits the release of FS...

The movement of a plant towards light.

It is in charge of our complex behaviours, controls and coordinates everything we do breathing, sleeping, memory etc.

A neurone that carry information from the receptors to the CNS.

There will be no auxin as auxin is found in the shoot. The plant will not grow.

Produced in the pituitary gland.Stimulates the release of an egg (ovulation) at day 14.

Nervous is faster acting than the endocrine system.Hormones have longer lasting effects compared to electrical impulses. Nerves act on a very specific...

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Produce adrenaline which is used to prepare the body for fight or flight.

The brain or spinal cord

The base, controls unconscious activities like breathing, movement in the intestines and heartbeat

Contains receptor cells called rods and cones. These are sensitive to colour and light intensity.