Alison was looking at a tissue under a microscope. It had cells within lacunae, and the matrix was glassy-looking. What type of tissue was she looking at?
A. adipose
B. areolar
C. bone
D. blood
E. cartilage
Answer: E
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Substrates used by methanogens include H2 and CO2 as well as short-chain organic compounds such as ________.
A. acetate B. formate C. methanol D. All of the choices are correct.
You are observing the embryonic development of a new species in your laboratory. This species has indeterminate development. You note a mutation in which one of the blastomeres (early cells) mutates and loses its function. What do you hypothesize would happen to this being?
A. Nothing—the remaining blastomeres would accomodate the formation of the necessary structures of the embryo. B. Immediate embryo death—the remaining blastomeres could not accomodate the formation of the necessary structures of the embryo. C. Uncertain future for the embryo—depending on which blastomere was lost, the remaining blastomeres might accomodate the formation of the necessary structures of the embryo. D. The embryo would certainly lack some features as a result of the lost blastomere.
Seedless vascular plants found in deserts do not require water for sperm to reach eggs
a. True b. False
As the predator population continues to increases, the prey population will eventually begin to _________
a. decrease b. increase c. remain unchanged