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.

B. It sticks out from the stem.

C. It has stiff walls.

D. It has tiny openings.

they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.

my answer is the prothallium.brainliest

answeran archaean