Which of the Following Statements About the First Animals to Show

question 13

Multiple Choice

Which of the following statements about the first animals to show cephalization is false?

• A)These animals were triploblastiC.
• B)These animals are placed in the group LophotrochozoA.
• C)These animals were in phylum Platyhelminthes.
• D)These animals followed the protostome pattern of embryonic development.
• E)These animals had a proboscis.

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Definitions:

Difference Threshold

The smallest detectable difference between two stimuli that a person can perceive.

Absolute Threshold

The minimum intensity of a stimulus that one can perceive, signifying the point at which a stimulus becomes noticeable to our senses.

Signal Detection

A technique or process used to identify the presence or absence of a stimulus under conditions of uncertainty.

Difference Threshold

The minimum difference in stimulation that a person can detect 50% of the time, also known as the just noticeable difference (JND).