WebRevise coordination and control – the nervous system for GCSE Biology, AQA. WebThe muscles in the eyelid shut the man's eye before the bee hits the eye. Describe the pathway taken by the nerve impulse in the blink reflex. Explain why we have this reflex. …

Nervous coordination and control in humans - BBC Bitesize

WebIt’s highly folded and is responsible for higher-order processes such as intelligence, memory, consciousness and personality The cerebellum: this is underneath the cerebral cortex and is responsible for balance, muscle coordination and movement The medulla: this region controls unconscious activities such as heart rate and breathing WebTwo common defects of the eyes are myopia (short-sightedness) and hyperopia (long-sightedness). In both cases rays of light do not focus on the retina so a clear image is not … iron and thyroid function

GCSE Biology (Single Science) - AQA - BBC Bitesize

WebEasy-to-understand homework and revision materials for your GCSE Biology (Single Science) AQA ‘9-1’ studies and exams. WebThe eye is a sense organ containing receptors sensitive to light intensity and colour. The retina Light passes through the eyeball to the retina. There are two main types of light … WebFor example, the gene for eye colour has an allele for blue eye colour and an allele for brown eye colour. For any gene, a person may have the same two alleles, known as … iron and tibc high