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:

Completely Inelastic

Describes a situation where the demand or supply for a good or service does not change in response to changes in price.

Inelastic

Describes a situation where the demand or supply for a good or service is relatively unresponsive to changes in price.

Elastic

Describes a situation in economics where the supply or demand for a good or service significantly changes in response to changes in price.

Price Ceiling

A legal maximum price that can be charged for a particular good or service, aiming to keep prices affordable.