Answer:
The answer is letter A.
Explanation:
Increases peripheral resistance due to the narrow diameter of these vessels.
The blood flow trough the capillary beds reaches almost every cell in the body and is controlled to divert blood according to the body's needs. After oxygen is removed from the blood, the deoxygenated blood flows to the lungs, where it is reoxygenated and sent through veins back to the heart.
I use save my exams
https://www.savemyexams.co.uk/gcse-biology-aqa-new/
And I also use past AQA papers but end of topic tests
Hope it helps :)
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3 there are 3 of them....
Sympathetic; either increase or decrease, depending upon the type of receptor present