What are the key features of chordates?
A) notochord, dorsal tubular nerve cord, pharyngeal pouches, and a tail
B) notochord, dorsal tubular nerve cord, water vascular system, and a tail
C) ventral nerve chord, notochord, pharyngeal pouches, and a tail
D) notochord, dorsal tubular nerve cord, nerve ring, and a tail
E) notochord, ventral nerve cord, water vascular system, and a tail
Correct Answer:
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Q51: Which of these is a unique characteristic
Q52: Which feature places cnidarians as eumetazoans?
A) Cnidarians
Q53: Why are developmental biologists especially interested in
Q54: Nephridia are found in
A) jawless fishes.
B) echinoderms.
C)
Q55: Which of the following is a hominin?
A)
Q57: Molluscs are
A) deuterostomes.
B) acoelomates.
C) protostomes.
D) pseudocoelomates.
E) segmented.
Q58: While excavating a cave in Spain, you
Q59: The closest living relatives of modern humans
Q60: Which feature is lacking in sponges?
A) multicellularity
B)
Q61: Which statement is inconsistent with invertebrate animals?
A)
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