Questions and Answers
Which group of animals possess a spiny skin and a water vascular system?
Echinoderms
Which phylum includes marine animals with comb plates?
Ctenophora
What is a distinctive feature of hemichordates?
Proboscis, collar, trunk
What kind of animals have a true coelom?
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Which group of animals exhibit triploblastic organization?
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Which animals are characterized by a notochord and dorsal hollow nerve cord?
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What is the most abundant group of animals characterized by jointed appendages?
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