In the keystone predator simulation, the invasive european green crab replaced starfish as a keystone predator
a. true
b. false

True

Explanation:

A keystone predator is a one which plays a functional role in the community of living beings by feeding the considerably increasing prey population. Hence, maintains a balance in nature.

The european green crab is a invasive species, which acts as a keystone predator it fight with the native crab species for resources like food. Reduces the abundance of marine species specially the mollusks, crustaceans and the sellfish.

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