________ Represent Values of a Variable That Are Unknown,either Because

question 62

Multiple Choice

________ represent values of a variable that are unknown,either because respondents provided ambiguous answers or their answers were not properly recorded.

• A) Missing responses
• B) Inconsistent responses
• C) Out-of-range values
• D) Invalid responses
• E) Edits

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Definitions:

Exotic Species

Organisms introduced to new habitats where they are not native, often leading to ecological imbalance.

Indicator Species

Indicator species are organisms used to assess the health of an environment or ecosystem, as their presence or absence indicates specific environmental conditions.

Endemic Species

Species that are native to and can be found only within a specific geographic area.

Keystone Species

A species that plays a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem.