Use the clues to fill in the words above.

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

Which of the following is a common danger of commercial fishing?

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.