Consider the structure of a trophic pyramid when answering the following questions: Why are shrimp more abundant than whales in the ocean?
A. Whales reproduce more slowly, so
maintain small population sizes.
B. More energy is available to primary
consumers, and thus the biomass/abundance
of primary consumers is greater than that of
secondary consumers.
C. Whales are warm-blooded secondary
consumers and lose more energy as heat,
therefore their level on a trophic pyramid is
smaller (more narrow) than for shrimp
(primary consumers).
D. The levels of the trophic pyramid represent
the percentage of primary producers that
make up a consumer's diet. Whales eat less
of the primary producers, so their level on a
trophic pyramid is smaller than the level for
shrimp.
B
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What is the key concept addressed by the question?
What will be an ideal response?
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an example of
a. physical separation. b. seasonal separation. c. temporal separation. d. transpiration.
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of the arctic tundra? a. a perpetually waterlogged soil b. rapid nutrient recycling c. one of the world's greatest store of carbon d. permafrost e. cool, anaerobic conditions
Use the life history table above to answer the following question. An individual of this species produces an average of __________ offspring in their 2nd year, has __________ probability of surviving to age 3 and has a lifetime reproductive success of _________.
A. 1; 25%; 1 B. 1; 25%; 3 C. 0.5; 2%; 3 D. 0.5; 2%; 1