An injury to the neurons of a collateral ganglion would affect the functions of which organ?a) heart. b) pupils.
c) sweat glands.
d) digestive tract.
e) arrector pili muscles.

After which event could you say that evolution has occurred? question 1 options: an allele frequency changes in a population. a white-eyed fly is born into a population of brown-eyed flies. a new predator comes into an environment. an animal gets fat.

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.

What was the land like over 500 million years ago? what was under the sea?