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When blood enters an arteriole, fluid leaks out into the tissues. Explain how most of the fluid is returned to the arteriole.

Blood in an arteriole is under high pressure at the start of the vessel, called hydrostatic pressure, and fluid can leak through its permeable membrane into the surrounding tissues. This leaves blood cells i...
HS
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What are the waste products of respiration?

Carbon dioxide and water. When glucose is taken up by the cells, the mitochondria in the cells break down the glucose into molecules of energy that can be used by the cells called ATP. To make ATP from gluco...
HS
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Describe one individual cause of criminal behaviour and explain how one study investigates it

An individual cause of criminal behaviour could be biological influences with an example being Brunner - who investigated how genes and serotonin can lead to criminal behaviour. He investigated 5 males from ...
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Answered by Olivia B. • Psychology tutor
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Discuss the successes and failures of China's population policy since the 1990's. (8 marks)

To achieve the highest marks, both successes and failures must be discussed explicitly and in depth, not just listed, which would limit you to half marks. Remembering two or three figures can make your answe...
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Answered by Natalie H. • Geology tutor
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Difference between ser and estar?

Compared to English, in Spanish we can say things in different ways. A core part of the language of Spanish is the difference between "ser" and "estar". Normally, both mean "to be&qu...
MP
Answered by Martin P. • Spanish tutor
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