I'm pretty sure the answer is A.
Answer:
a microscopic organism, especially a bacterium, virus, or fungus.
Explanation:
The chemical is called Cholecystokinin,it helps<span> stimulates the gallbladder to contract and release stored bile into the intestine
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Ticks .
Characters : 2 Body segments , 8 legs and No Antenna .
Is it because there is to many bliw dryes plugged in