I’ll mark u brainliest correct answer only

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.

How can an organ, such as the lungs, work for multiple body systems?