The phylogenetic tree of animals shows that
A) Sponges, Phylum Protozoa, are the earliest lineage.
B) Eumetazoans are radially symmetrical.
C) Eumetazoans diverged with one branch becoming protostomes and the other becoming deuterostomes.
D) Protostomes and deuterostomes are distinguished by whether the blastopore becomes the mouth or the anus.
E) The subkingdom Eumetazoa are divided into protostomes and deuterostomes
Correct Answer:
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Q28: Which is NOT a feature of the
Q29: Animals in phylum Nemertea are called proboscis
Q30: Which Phylum could be described as acoelomate,
Q31: Cestodes are
A) tapeworms.
B) parasites of vertebrates.
C) contain
Q32: Which of the following statements about cestodes
Q34: In sponges, the ostium is
A) a pore
Q35: Ctenophores
A) most lack nematocysts.
B) have transparent sac-like
Q36: In Platyhelminths differ from cnidarian
A) since cnidarians
Q37: In many protostomes, each embryonic cell develops
Q38: What gene family is thought to be
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