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Ecosystems and Biodiversity · Question 51 of 68

Question 51

HardOriginal question

A species whose removal would change an entire ecosystem far more than its numbers suggest, such as a top predator, is called a

Options for question 51

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. Like the keystone that holds an arch together, a keystone species holds its community in balance.

  2. A tiger keeps deer numbers in check; without it, overgrazing would change the forest.

Concept
Keystone species
Typical time
90 s
Your time
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Ten questions from Ecosystems and Biodiversity, at your own pace.

Practise this chapter →

Ten questions from Ecosystems and Biodiversity, at your own pace.