Which of the following is a synapomorphy that defines all green algae and land plants?
A. Cell walls
B. Vascular tissue
C. Photosynthetic chloroplasts
D. Seeds
Ans: C. Photosynthetic chloroplasts
Biology & Microbiology
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Which of these is the best example of an umbrella species?
A. northern spotted owl. B. brown tree snake. C. humpback whale. D. giant panda. E. Gopher tortoise.
Biology & Microbiology
The cone snail, which makes venom that has been used to develop drugs, is a type of
A. chiton. B. gastropod. C. bivalve. D. cephalopod. E. nudibranch.
Biology & Microbiology
Cyclic AMP is a common second messenger, often associated with ____ hormones
a. peptide b. steroid c. protein d. fatty acid e. polysaccharide
Biology & Microbiology
Cartilaginous fishes retain __________ in their body,
so they do not lose or gain water by osmosis. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology