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Verbal·Expression of Ideas·Transitions
easy
Within a given ecosystem, energy tends to transfer across what ecologists, such as Michelle Evans-White, call trophic levels.        primary producers, like plants, at the first trophic level provide energy (i.e., food) for herbivores, like deer, at the second level; those at the second level provide energy for carnivores and omnivores, like coyotes, at the third; and so on, up the food chain.
Which choice completes the text with the most logical transition?
A
By contrast,
B
Likewise,
C
However,
D
For example,