What Key Research Question Was Addressed by King and Others

question 82

Multiple Choice

What key research question was addressed by King and others in studying sponges?

• A) Were the sponges the last common ancestor of eumetazoans?
• B) Did sponges survive the precambrian mass extinction, with genes unique from other animal groups?
• C) How similar is the DNA of living marine sponges to that of fossil sponges from the Cambrian?
• D) Could the Cambrian explosion of diversity of life have been mirrored by rapid evolution among sponges?
• E) Why were the sponges an evolutionary dead end, with little change and diversity since the Cambrian?

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