Answer:
maybe if you payed attention in class, you would know the answer.
Explanation:
Answer:
It helps prevent invasive species from coming in.
Explanation:
Invasive species ruin habitats because they have no natural predators, so they grow and mooch off of native species which kills them off.
<span>True plankton are low in the food chain</span>
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<span>Species is a group of reproducing populations that are isolated from other groups. </span>
