Whether an organism is classified as a photoheterotroph or a photoautotroph depends on its
A) energy source.
B) carbon source.
C) oxygen requirements.
D) carbon and energy sources.
Answer: B
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After the results of the chromatography and electrophoresis experiments, can you reasonably conclude that the red shell color is produced by a single red pigment whose synthesis is catalyzed by an enzyme (with an approximate mass of 45 kDa) coded for by the dominant allele?
a. Yes b. No c. You can reasonably conclude that the shell color is produced by a singlepigment, but not that it is catalyzed by an enzyme coded for by the dominantallele.
Which of the following was the first
invertebrate listed as endangered by the US Fish and Wildlife Service?
a. marine mollusk b. white abalone c. Atlantic lobster d. sea anemone e. blind crab
Age-specific mortality is defined as the
A) difference between the number of individuals alive for any age class and the next older age class. B) number of individuals that died during any given time interval divided by the number alive at the beginning of that interval. C) number of individuals from the original cohort who are alive at the specified age. D) probability at birth of surviving to any given age.
________ is a single-celled fungus that produces yeast infections
Fill in the blank(s) with correct word