Into which group would you place a multicellular heterotroph with chitin cell walls?
A) Animalia
B) Archaea
C) Bacteria
D) Fungi
E) Plantae
Ans: D) Fungi
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You have just read an advertisement for a new drug that claims people who take it can get muscular bodies without spending months lifting weights in the gym. The drug stimulates muscle growth in the same way that weight lifting does, which is to
A. stimulate existing muscle fibers to divide. B. stimulate growth in the size of existing muscle fibers. C. stimulate an increase in the proportion of slow-twitch muscle fibers. D. stimulate existing muscle fibers to fuse with one another. E. turn surrounding connective tissue into muscle tissue. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about how weight lifting increases muscle strength? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Tissue transplantation has been made possible by our ability to
A) competitively inhibit HLA molecules. B) alter the expression of the HLA molecules. C) inhibit the binding of helper T cells to the HLA. D) closely match HLA molecules between individuals. E) inhibit interleukin-5.
The striking dissimilarities in plant communities among different biomes that have the same average yearly amount of rainfall can be explained by the fact that
A) plant communities are influenced more by the acidity of rain than by the amount of rainfall. B) plant communities are not influenced by rainfall. C) plant communities occur randomly, depending on where seeds are blown or carried. D) plant communities evolve more slowly than changes in weather patterns. E) temperature and rainfall interact to influence plant communities.
If an organism is diploid and a certain gene found in the organism has eighteen known alleles (variants), then any given organism of that species can/must have which of the following?
A) at most, two alleles for that gene B) up to eighteen chromosomes with that gene C) up to eighteen genes for that trait D) a haploid number of nine chromosomes E) up to, but not more than, eighteen different traits