What is a bacteriophage? a bacterium that infects viruses a nucleic acid that infects viruses a protein that infects bacteria a virus that infects bacteria

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

Why has two different alleles for the same trait?

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp