Midocean ridges form:
a. anywhere in the middle of the ocean.
b. in subduction zones.
c. where oceanic crust is cracked and magma is emerging.
d. in deep ocean trenches.
C
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In a trophic pyramid, the biomass of lower trophic levels is typically much greater compared to that of higher levels. What does this tell you about the transfer of energy between trophic levels? Select all that apply
A. Energy does not move from lower to higher trophic levels. B. Energy is gained as it moves from lower to higher trophic levels. C. Energy is lost as it moves from lower to higher trophic levels. D. The amount of energy remains the same as it moves between trophic levels.
Which of the following summarizes the Hardy-Weinberg principle?
a. Without evolutionary forces, a population’s allele frequencies are stable. b. Traits are acquired through use or disuse and passed to offspring. c. Due to microevolution, the population’s genetic structure is changing. d. Natural selection impacts the genetic makeup of a population.
The structure and arrangement of internal parts of a plant is the ____ of the plant
a. morphology b. ecology c. anatomy d. distribution e. physiology
Assume that the length of a type of cucumber at maturity is controlled by three genes (A, B, and C), each of which has two alleles. The A, B, and C alleles each add 2 inches of cucumber growth, while the a, b, and c alleles add only 1 inch
A true-breeding 6-inch strain is bred to a true-breeding 12-inch strain. All the F1s produce 9-inch cucumbers. What sizes would you expect to see in the mature F2s? A) Discrete lengths of 6, 9, and 12 inches B) Discrete lengths of 6 and 12 inches C) Discrete lengths of 9 inches D) Discrete lengths of 6, 7, 8, 9, 10, 11, and 12 inches E) Lengths ranging continuously from 6 to 12 inches