The Extant Group Likely to Be the Most Closely Related

question 12

Multiple Choice

The extant group likely to be the most closely related to the basal chordates are the echinoderms because

• A)there is direct fossil evidence for a lineage from sea stars to tunicates.
• B)tunicates are advanced echinoderms.
• C)early embryonic development of echinoderms is similar to that of chordates.
• D)although there are few similarities between echinoderms and chordates,there are even fewer between chordates and any other group.
• E)new molecular evidence shows they are nearly identical at the rRNA level.

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Definitions:

Correct Sequence

The arrangement of elements in a particular, often logical or required, order.

Latency

The time delay between the initiation of a stimulus and the response or occurrence of a subsequent event.

Freud's Theory

A set of psychoanalytic theories and therapeutic techniques related to the study of the unconscious mind, developed by Sigmund Freud, emphasizing the influence of childhood experiences and sexual desires on the psyche.

Expressing Emotions

The process of conveying one's feelings to others through words, facial expressions, or actions.