Which group of mammals lays eggs that have a leathery shell?
a. Marsupials
b. Placental
c. All mammals lay eggs
d. None of the mammals lay eggs.
e. Monotremes
e
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When two or more separate mutlicellular algae stages occur in succession during the life cycle, we call this:
a. gametangia. b. fragmentation. c. sporangium. d. alternation of generations.
Differentiate among the following types of genes: tumor-suppressor gene, proto-oncogene, and oncogene
What will be an ideal response?
Explain how abscisic acid promotes the closure of stomates. Identify the molecules involved at each step.
A. ________B. ________C. ________D. ________
What will be an ideal response?
A humans eye color is determined by several genes and eye color can very from very light blue to very dark brown. This is an example of a trait coded for by ___________.
a. pleiotropic genes b. polygenes c. codominant d. incomplete dominance