Biology, 25.01.2021 17:30, wyattdawes45

Please look at the 5 scenarios below, 1st you need to determine if they are positive or negative feed back loops. then, you need to defend your answer! Please use complete sentence when explaining your answer! An increase in concentration of glucose in the blood stimulates the pancreas to secrete insulin. This is an example of (negative/positive) feedback.
The onset of contractions during childbirth causes the release of oxytocin which stimulates further contractions of the uterus. This is an example of (negative/positive) feedback.
Thyroxine levels are low causing the pituitary gland to release thyroid stimulating hormone, which stimulates the thyroid to release more thyroxine. This is an example of (negative/positive) feedback.
Water concentration in the blood stream is low causing the release of antidiuretic hormone which causes the body to hold water and not release it as urine. This is an example of (negative/positive) feedback.
Suckling stimulates the release of oxytocin which causes milk letdown from mammary glands, which stimulates more suckling, causing the release of more oxytocin resulting in increased milk letdown. This is an example of (negative/positive) feedback.

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Please look at the 5 scenarios below, 1st you need to determine if they are positive or negative fee...