Once neurotransmitters carry an impulse across a synaptic bridge, they can be broken down by 1) sodium ions 2) enzymes 3) electrical impulses 4) axons

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Which nucleotide component contains nitrogen

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