Echinoderms are unusual invertebrates as they have all of the following except:
A) an endoskeleton.
B) pentaradial symmetry.
C) a water vascular system.
D) pedicellariae present in some classes.
E) small disc-shaped flat bodies.
Correct Answer:
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Q1: Sea cucumbers will _ when environmental conditions
Q2: Deuterostomes are characterized by _ and _
Q2: Sea stars eat:
A) large fish.
B) mostly algae.
C)
Q7: Urochordates are odd chordates, as typically only
Q9: Echinoderms are unique because:
A) the larvae are
Q11: Figure 32-1
Use the figure to answer the
Q13: Adult tunicates resemble _and are _.
A) eels;
Q18: Class _ includes mostly extinct species and
Q18: Deuterostomes evolved during the:
A) Cambrian.
B) Proterozoic.
C) Paleozoic.
D)
Q19: Prominent spines are found on _ of
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