__________, a Group of Animals That Were Attached to the Seafloor

question 3

Multiple Choice

__________, a group of animals that were attached to the seafloor and captured food with their waving arms as it came floating by, expanded to their greatest diversity during Early Carboniferous.

• A) Crinoids
• B) Brachiopods, except productids
• C) Lacy bryozoans
• D) Fusulinids

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Definitions:

Dependent Variable

A variable in experimental research that is expected to change as a result of manipulations in the independent variable.

Cause-Effect Relationship

A relationship where one event (the cause) makes another event happen (the effect), demonstrating a connection between actions and outcomes.

Dependent Variable

The variable in an experiment that is expected to change in response to manipulations of the independent variable.

Systematic Manipulation

A methodical approach to influencing or controlling variables in a study or experiment to observe effects on subjects or outcomes.