Which type of muscle decreases the size of the pupils of your eyes in bright light a)skeletal b)smooth c)cardiac d) a and c

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 ?

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?