Science-2questions

Which of the following describes how matter moves between producers, consumers, and decomposers in an ecosystem?
one-way flow from producers to consumers to decomposers
one-way flow from decomposers to consumers to producer
cyclic flow froms producers to consumers to decomposers and back to producers
cyclic flow from decomposers to consumers to producers and back to decomposers

Robins are common songbirds found in many parts of the U.S. They have been observed eating berries, cherries, live worms, and spiders. Which of the following pairs of terms could be used to describe this bird?

carnivore and scavenger
omnivore and predator
herbivore and autotroph
heterotroph and decomposer

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