The plasma proteins in humans _____
A) maintain the blood's osmotic pressure
B) transport water-soluble lipids
C) carry out gas exchange
D) undergo aerobic metabolism
E) transport oxygen
Answer: A
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Which of the following statements is true regarding the mark-and-recapture method?
A. It assumes that the size of the population of interest remains constant between the initial mark and subsequent recapture measurements. B. It can be represented by the equatiAon: N = C/R x M. C. It can rely on members of a species being identified by physical characteristics (i.e., fin markings on whales). D. It is used to estimate the size of a population of interest. E. All of the answer options are correct. F. None of the answer options is correct.
The above figure is a photograph of
a. a plant with root nodules. b. mycorrhizae. c. root hairs. d. a demonstration of the effect of mutualistic Rhizobium. e. a microscopic view of a nodule forming around area where the bacterium infect.
Arthrospores of Coccidioides immitis develop into ________ that will release endospores into the lungs.
A. hyphae B. capsids C. spherules D. buds E. capsules
Which factor contributes to the phenomenon of natural selection?
A) genetic homogeneity in a population B) lack of competition in mating C) underpopulation D) competition for survival