An astronaut is launched into space. the of the astronaut did not change. this is measured in kg.

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

What is the difference between how ionic and covalent bonds form

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