Plants that have leaves arranged in a rosette
A) Have a circular arrangement of leaves and long internodes
B) Are low growing because they have no stems whatsoever
C) have greatly shortened internodes
D) always have compound leaves
Answer: C
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In the snail Pomacea patula catemacensis, n = 13. What is the diploid number for this organism?
A) 13 B) 26 C) 52 D) 7
The phenotypic changes shown in the figure above represent
A. punctuated equilibrium.
B. horizontal gene transfer.
C. gradualism.
D. speciation based on sexual selection.
Which of the following is used in the treatment of obesity?
(a) gastric bypass surgery (b) adjustable gastric band procedure (c) lorcaserin (d) all of the above
A newly-discovered double-stranded RNA virus which infects animal cells is found to contain a unique enzyme which synthesizes double-stranded RNA using an RNA template. Which of the following statements is likely to be true?
A) This enzyme is coded for by a gene in the host cell. B) The enzyme probably came from the host animal cell. C) The enzyme probably came from the host animal cell and is coded for by a gene in the host cell. D) The virus must bring this enzyme into the host cell as synthesizing RNA from an RNA template does not happen in animal cells. E) This enzyme would not be a good antiviral drug target as the host cell likely has a similar enzyme which could be affected by such a drug.