1. The first choice on a dichotomous key is:
“1A. Are wings covered by an exoskeleton?
vs. 1B. Are wings not covered by an
exoskeleton?" Which organism is separated
from the others by this question?

Organisms within a population must compete for resources to survive

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

Which could be a pathway of food through an ecosystem