31. Invertebrates
Echinoderms
31. Invertebrates
Echinoderms
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- Multiple ChoiceWhat is one visible feature that makes it easy to identify sea cucumbers as echinoderms?
- Multiple ChoiceWhich of the following statements about the phylum Echinodermata is true?
- Multiple ChoiceThe water vascular system of a sea star functions in __________.
- Open QuestionThe water vascular system of echinodermsa. functions as a circulatory system that distributes nutrients to body cellsb. functions in locomotion and feeding.c. is bilateral in organization, even though the adult animal is not bilaterally symmetrical.d. moves water through the animal's body during filter feeding.
- Open QuestionWhich of the following combinations of phylum and description is incorrect?a. Echinodermata—bilateral symmetry as a larva, coelomateb. Nematoda—roundworms, pseudocoelomatec. Platyhelminthes—flatworms, gastrovascular cavity, acoelomated. Porifera—gastrovascular cavity, coelomate