Xylem contains specialized cells that provide support for a plant stem. How does the structure of one of these cells help it carry out this function?
A. It changes shape to allow gas exchange.
Ο Ο
B. It sticks out from the stem.
C. It has stiff walls.
D. It has tiny openings.
SUBMIT

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.

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000

Which statement correctly compares metaphase i and metaphase ii? in metaphase ii twice as many chromosomes line up along the middle of the cell as in metaphase i. in metaphase i twice as many chromosomes line up along the middle of the cell as in metaphase ii. in metaphase ii twice as many chromosomes are pulled to opposite ends of the cell as in metaphase i. in metaphase i twice as many chromosomes are pulled to opposite ends of the cell as in metaphase ii.