in which way does a flood have the greatest impact on local water quality?
a. it causes aquifers to run out of water.
b. it cleans the water and decreases the turbidity.
c. it allows many foreign materials to enter the water.
d. it moves animals to new locations and increases biological diversity.

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

Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.

How many chromosomes are in a gold fish?