Which of the following describes echinoderms?They are found in both freshwater and saltwater environments.O Digestion...
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Biology
Which of the following describes echinoderms?They are found in both freshwater and saltwater environments.O Digestion occurs completely outside of the organism.Hemolymph circulates in the water vascular system.They have an exoskeleton of hard calcareous plates.Tubefeet provide motility in most species.
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