Sea stars eat:a
large fish.
b. mostly algae.
c. sea weed.
d. mostly crustaceans and mollusks.
e. debris on the bottom.
D
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Which of the following is a possible outcome of activation of the complement system?
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Which group is responsible for converting H2S into sulfates?
A) purple bacteria B) cyanobacteria C) soil fungi D) plants
Consider the case of X-linked inheritance of a recessive mutant allele. Among progeny from a cross of an unaffected male and a heterozygous female carrier,
A: all male offspring of would show the trait. B: all female offspring who receive the recessive mutant X would show the trait. C: all male offspring who receive the recessive mutant X chromosome would show the trait. D: all female offspring would be carriers. E: roughly half of the female offspring would show the trait.
Which of the following tests would be the best for determining if a cell were carrying on photosynthesis?
A. Does the cell contain water? B. Does the cell produce carbon dioxide? C. Does the cell release oxygen? D. Does the cell require oxygen to stay alive?