Identifying human impact on the environment how do you think humans might affect the environment? check all that apply.

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase

Pulmonary arteries carry highly oxygenated blood. true or false?