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Verbal·Expression of Ideas·Transitions

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Ecologists, such as Michelle Evans-White, use the trophic pyramid to illustrate the transfer of energy via food in an ecosystem. At the pyramid’s base are primary producers, like algae, that provide food to herbivores, like shrimp, at the second trophic level; these animals, __________ provide food to omnivores and carnivores, like seals, at the third level; and so on, up the food chain.

Which choice completes the text with the most logical transition?

A

nevertheless,

B

for instance,

C

in turn,

D

alternatively,