When a single cell undergoes mitosis, what is the result?
A.
Four nonidentical cells are formed.
B.
Two nonidentical cells are formed.
C.
Two identical cells are formed.
D.
Four identical cells are formed.

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?