What kind of bones do birds have?
a. hollow
b. narrow
c. thin
d. cartilage

In order to clone adult animals, scientists typically begin with a(n)

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

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