OBJECTIVE LIFE SCIENCE
DIVERSITY AMONG LIFE FORMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Keystone species examples
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wolf
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hummingbird
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elephant
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sea otter
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Explanation:
Detailed explanation-1: -Sea otters are a “keystone species” which means that they can exert top-down pressure via predation on sea urchins, which are grazers upon kelp.
Detailed explanation-2: -In North America, there are two distinct sea otter subspecies, the northern sea otter (E. l. kenyoni) and the southern sea otter (E. l.
Detailed explanation-3: -Sea otters have long been recognized as a classic example of a keystone species, a dominant predator that maintains the balance of kelp forest ecosystems by controlling populations of sea urchins, which are voracious kelp grazers.
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