The maintenance of a constant internal environment.

People are unable to focus on near objects. This occurs when the lens doesn't refract the light enough or the eyeball is too short. The image is broug...

Kidneys make urine by taking unwanted waste products out of your blood. They are involved in selective reabsorption.

37 degrees Celsius

Outer transparent layer, bends/refracts light into the eye

The brain or spinal cord

See an expert-written answer!We have an expert-written solution to this problem!

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 blood vessels supplying the skin constrict to close off the skins blood supply.

It is a system that allows you to react to your surroundings.

A muscle that controls the diameter of the pupil and how much light enters. The coloured part of the eye.

Contact lenses, laser eye surgery and replacement lens surgery.