Answer:
C.
Explanation:
When you have a cut on your finger, positive feedback contributes to the rapid formation of a platelet plug in an injured blood vessel. The injured area attracts platelets, and each of these platelets secretes chemicals that attract
more platelets. Thus, many platelets accumulate quickly and together these platelets plug the hole in the injured blood vessel and prevent excessive blood loss.
Answer: Kidneys filter half a cup of blood every single minute to remove waste and extra water. They also remove acid. The water, waste, and acids form urine.
Explanation:
Answer:
Photon is a light energy from sunlight.
Fat provides 9 calories per gram
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Answer:
a decreased sensitivity or hurt levels