To test for the keystone species hypothesis, the wolves in another region can be removed or trees can be reintroduced to see the effect on the ecosystem.
<h3>What is a keystone species?</h3>
A keystone species is an organism whose existence defines an entire ecosystem such that them, the ecosystem would be severely affected or may not exist.
Trophic cascades are events which result in serious distortions in an ecosystem as a result of the removal or addition of a top predator.
To test for the hypothesis of keystone species and trophic cascades, the wolves in another region can be removed or trees can be reintroduced to see the effect on the ecosystem.
Learn more about keystone species at: brainly.com/question/2044051
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Answer:
He used peas because they are self pollinating,they grow fast,and they have many traits
Nutrients enter a cell up the concentration gradient by the process of active transport.
Light is to find the distance between planets called light years.
