All blood cells are produced in the ___.

Most bacteria are producers.

Red bone marrow serves to store fat.

A microspore develops into a

In the flowering plants, pollination may be carried out by wind or by animals.

Earthworms are in the phylum ____.

Average daily temperature sets the biological clock of animals and plants.

Which of the following is NOT a function of the human skeletal system?

Sandy beaches are considered the “nursery” of the sea because of their high productivity and nutrient richness.

Hormone that causes stem elongation.