Which group are vascular plants?
a) liverworts
b) mosses
c) hornworts
d) ferns
Ans: d) ferns
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The ability to conjugate depends on the presence of a plasmid called the ____ within the donor cell
a. X factor b. F factor c. C factor d. sex pilus e. S factor
The many lamellae in the gills of fish improve respiratory efficiency by ______.
A. changing the diffusion constant B. decreasing the distance for diffusion C. increasing the surface area for diffusion D. increasing the concentration difference
In an experiment on wayfinding, indigo buntings were housed in outdoor cages with blotting paper
walls and inkpads on the floors. Which of the following facts demonstrated to researchers that the indigo bunting uses the positions of stars to orient its migration?
a. The birds' inky feet made prints indicating the direction in which they attempted to fly. b. In spring the inky footprints were mostly on the northern side of the cage. c. In fall the inky footprints were mostly on the south side of the cage. d. On cloudy nights the footprint patterns were random. e. In spring and fall, the anterior pituitary of the bird's brain generated a series of hormonal changes.
Classically, nature and nurture have been considered as two very separate factors impacting
phenotype. Considering what we have learned of methylation, is this always the case? What will be an ideal response?