Which of the following is a characteristic of animals in the phylum Hemichordata?
A) closed circulatory system
B) incomplete digestive tract
C) ciliated pharyngeal slits
D) indeterminate cleavage
E) blastopore develops into the mouth
Correct Answer:
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Q52: Coiled masses of fecal material called _
Q53: Sea daisies were formerly assigned to a
Q54: Enteropneusta and Pterobranchia are classes of animals
Q55: Most modern echinoderms assume a mouth-down feeding
Q56: Members of the phylum _ include acorn
Q58: Which is the only class of echinoderms
Q59: Acorn worms belong to the class
A)Ascidacea.
B)Concentricycloidea.
C)Pterobranchia.
D)Enteropneusta.
E)Thaliacea.
Q60: The anterior region of the digestive tract
Q61: Enteropneusta and Pterobranchia are classes of animals
Q62: All of the following are true of
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