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Answer:
C
Explanation:
Generalist predators. Generalist predators have, by definition, several alternative prey species between which they may 'switch', depending on which prey species are currently most abundant.
<span>Zookeepers
have a difficulty of keeping koala bears alive because Koala bears are
susceptible to viral infections. There is a virus that is present to Koalas
which is called the Koala retrovirus. Koala retrovirus makes a Koala bear more
susceptible to infections and even cancer. </span>
