The energy that flows from a warmer body to a colder body is called

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

Pulmonary arteries carry highly oxygenated blood. true or false?

What are positive impacts of algae? how is it used?