Scavengers and decomposers are examples of .

Decomposers and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms. ... Scavengers are animals that find dead animals or plants and eat them. There are two main kinds of decomposers, scavengers and decomposers. Scavengers find dead plants and animals and eat them. Decomposers break down what's left of dead matter or organism waste. The different decomposers can be broken down further into three types: fungi, bacteria, and invertebrates.

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consumers

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im doing the same quiz

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."