How Many of the Following Statements About Craniates Is (Are)

question 90

Multiple Choice

How many of the following statements about craniates is (are) correct? 1. Craniates are more highly cephalized than are noncraniate chordates.
2) Craniates' genomic evolution includes duplication of clusters of genes that code for transcription factors.
3) The craniate clade is synonymous with the vertebrate clade.
4) Pharyngeal slits that play a major role in gas exchange originated in craniates.
5) The two-chambered heart originated with the early craniates.

• A) only 1 is correct
• B) 1 and 5 are correct
• C) 2, 3, and 5 are correct
• D) 1, 2, 4, and 5 are correct
• E) all 5 options are correct

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