The reduction of the chromosome
number during meiosis is most important for:
a. keeping the amount of DNA in the cell at a
minimum level
b. preventing the nucleus from becoming
larger with each cell division
c. maintaining the chromosome number
during sexual reproduction
d. allowing the growth of the cell without
increasing the DNA content

When should a bar graph be used? a. when there is no independent variable. b. when the independent variable is continuous and does not show a relationship to the dependent variable. c. when the independent variable is continuous and shows a causal link to the dependent variable. d. when the independent variable is composed of categories and does not show a relationship.

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey