Hemichordates Were Not Recognized Until the 1800s Because They

question 18

Multiple Choice

Hemichordates were not recognized until the 1800s because they

• A)were considered roundworms.
• B)are very rare.
• C)are common but only around deep ocean vents.
• D)have recently dramatically increased in numbers.
• E)had secretive habits and fragile bodies.

Understand the adaptive significance and evolutionary strategies among nonhuman primates.

Compare and contrast the behaviors and social structures of different primate species.

Identify various social behavior patterns in nonhuman primates, especially after conflict situations.

Critically evaluate historical and contemporary research findings on nonhuman primate behavior.

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Definitions:

Dependent Variable

In an experiment, the variable that is being tested and measured, expected to change in response to manipulations of the independent variable.

Independent Variable

The variable in an experiment that is manipulated or changed by the researcher to observe its effect on the dependent variable.

Manipulation

The skillful or artful management or control of something or someone, often in a manner that is somewhat deceptive or underhanded.

Control Group

In experimental research, it refers to the group of participants who do not receive the experimental treatment, offering a baseline comparison for the effects of that treatment.