Multiple Choice
Which of the following best explains how current and oxygen content affect the biodiversity of streams and rivers?
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48. Ecology
Introduction to Ecology
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Which term best describes a species that is introduced to a new environment and disrupts the natural variability of an ecosystem?
A
Endemic species
B
Invasive species
C
Indicator species
D
Keystone species
Verified step by step guidance1
Understand the definitions of the terms provided in the question: Endemic species, Invasive species, Indicator species, and Keystone species.
Endemic species are organisms that are native to a specific geographic location and are not found naturally anywhere else. They do not disrupt ecosystems but are part of the natural biodiversity.
Invasive species are non-native organisms introduced to a new environment, often by human activity, that can outcompete native species, disrupt ecosystems, and cause ecological harm.
Indicator species are organisms whose presence, absence, or abundance reflects specific environmental conditions, such as pollution levels or ecosystem health. They do not disrupt ecosystems but serve as ecological markers.
Keystone species are organisms that play a critical role in maintaining the structure of an ecosystem. Their removal can lead to significant changes in the ecosystem, but they are not introduced species. Based on these definitions, the term that best fits the description in the question is 'Invasive species.'
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