Eavironmental Science Exam 5 Student\'s Name Answer the f 17. Sea Student Number

Question

Eavironmental Science Exam 5 Student's Name Answer the f 17. Sea Student Number iestions in the erovided. oved from the ecosystem, the number of mussels will increase until they are so s that they out-compete many of the other species present for living space. When stars living along the Pacific Coast of the United States eat mussels. If sea stars are rem sea stars were removed during an experiment in the 1960s, the total number of others stem fell from 15 to 8. Is this evidence that sea stars were a keystone species in in the ecosy this ecosystem? Why or why not? Be sure to include a definition of keystone species in your answer

Explanation / Answer

Yes, sea stars are keystone species as they are observed to be a dominant predator whose absence raises prey population and decreases diversity. A species which play an unique and crucial role in the way an ecosystem functions. Without keystone species the ecosystem is disturbed.

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