The organisms that convert solar energy and raw materials into food are
A: producers.

Which of these is a freshwater reservoir?
A: Antarctic polar ice

Chromosome mutations involve the deletion or duplication of many genes. The effects of chromosome mutations are often much greater than mutations within a single gene, because chromosome mutations
A: can cause abnormal development of the offspring.

Florida has a large supply of phosphate that ancient seas deposited millions of years ago. The phosphate contains the remains of animals that were deposited in layers on the sea floor. Which type of rock did the phosphate become?
A:
organic sedimentary