Is a guinea pigs unicellular or a multicellular?

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis?

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water