Biology: Life on Earth with Physiology (11th Edition)
Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 31, Problem 2MC
Summary Introduction

Introduction:

Species play an important role in the ecosystem. They help in maintaining species diversity, food chain or food balance, structuring community, the health of an ecosystem by maintaining the ecological balance.

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The relative abundance of any one species within a community of many species is known as   a. species evenness.   b. species richness.   c. specialization.   d. population.
According to the competitive exclusion principle,a. one species is always more competitive than another for a particular food source.b. competition excludes multiple species from using the same food source.c. no two species can occupy the same niche at the same time.d. competition limits the reproductive capacity of species.
A species that has an immediate threat to extinction is said to be:a. threatened. c. alien.b. endangered. d. extinct.
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