Which of the following is a system operation in amoeba?
-excretion
-liver
-kidneys
-bone and fat

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

Mr. olajuwan was in a horrific snowmobile accident. afterwards he had trouble walking and he had a loss of balance. which of the 4 major brain region was probably demaged