Statoliths, particles that move in the direction gravity pulls them, are typically ____ in plants
a. amyloplasts
b. calcium carbonate crystals
c. nuclei
d. vacuoles
e. hormones
ANSWER: a
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Which parts of the human eye are adjustablethat
is, they can be adjusted to accommodate light and/ or images?
a. the cornea b. the iris c. the lens d. the cornea and the lens e. the lens and the iris
Which of the following are examples of genetic drift?
A. Bottle Neck Effect B. Founder Effect C. Random Mating D. A & B only E. A, B, & C
Matings between individuals from the two populations of Rhagoletis produce hybrid flies that appear to be healthy and have normal life spans. The eggs laid by these hybrid flies, however, hatch less often than those of flies from either of the two populations. What isolating mechanism seems to be important in this hybrid population?
A) Prezygotic isolation B) Mechanical isolation C) Reduced hybrid fertility D) Habitat isolation
Who developed the method widely used to sequence DNA?
What will be an ideal response?