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What part do the kidneys play in homeostasis?

The kidneys can be split into 5 main sections. Firstly we have the glomerulus. Blood enters the kidneys via the afferent arteriole and then travels to the glomerulus which is just a cluster of capillaries. T...
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Answered by Nicole A. • Biology tutor
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Explain a chemical synaptic transmission

Nerve impulses are transmitted along the axon by saltatory propagation. This is where the wave of depolarisation jumps across to small gaps known as nodes of ranvier, dramatically reducing the time taken for...
JA
Answered by James A. • Biology tutor
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How does the oxygen in the air reach respiring cells in humans?

Air is breathed in through the nose and the mouth. It makes its way down the trachea (windpipe) and enters into the lungs. The air enters into the small sacs of the lungs called alveoli which in a microscope...
RK
Answered by Rashaad K. • Biology tutor
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The House of Lords performs some important functions in government and does not require radical reform.’ Discuss

While the House of Lords does have many issues pertaining to it, it does play a role in British politics and often does give valuable contributes to the system. One example of this would be the vital check i...
DM
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Describe and Evaluate the Psychodynamic Approach in Psychology

The psychodynamic approach believes that personality and behaviour is governed by the tripartite personality, made up of the ID – which operates on the pleasure principle and is the cause of irrational and u...
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Answered by Declan M. • Psychology tutor
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