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Echinoderms Solutions Library

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17 solutions

Echinoderms

Q. Which of the following is not characteristic of the sea stars?a. water vascular systemb. central disk with five or more armsc. notochordd. spiny sk...

Solved • Nov 7, 2017

Echinoderms

Q. Which of the following is not an echinoderm?a. sea urchinb. sea starc. octopusd. sea cucumber 

Solved • Nov 7, 2017

Echinoderms

Q. Early embryonic development of echinoderms is similar to that found in a. gastropods b. arthropods c. cephalpods d. humans e. other protostomes

Solved • Nov 7, 2017

Echinoderms

Q. Echinoderms are most closely related to: a. roundworms b. mollusks c. annelids d. arthropods e. chordates

Solved • Nov 7, 2017

Echinoderms

Q. Which of the following is not descriptive of deuterostomes?a. embryo divides by radial cleavageb. larva is a trochophorec. anus develops from the b...

Solved • Nov 7, 2017

Echinoderms

Q. Most reproduction in echinoderms isa. sexual and externalb. hermaphroditicc. asexual by fragmentationd. parthenogenice. sexual and internal

Solved • Nov 7, 2017

Echinoderms

Q. Sea urchins move about bya. tentaclesb. flexible armsc. movable spinesd. small pincherse. extruding slime

Solved • Nov 7, 2017

Echinoderms

Q. The _______________ comprise the largest class of echinoderms in terms of numbers.a. brittle starsb. sand dollarsc. sea urchinsd. sea liliese. sea ...

Solved • Nov 7, 2017

Echinoderms

Q. Some sea stars digest bivalve mollusksa. in the mouth regionb. in the mollusk shellc. within their gastrovascular cavityd. in a digestive space in ...

Solved • Nov 7, 2017

Echinoderms

Q. The only living echinoderms that are fully sessile are thea. sea liliesb. brittle starsc. feather starsd. sand dollarse. sea cucumbers

Solved • Nov 7, 2017

Echinoderms

Q. The "spiny skin" for which echinoderms are named refers to thea. extended skin gillsb. protruding tube feetc. rigid tentaclesd. chitinous exoskelet...

Solved • Nov 7, 2017

Echinoderms

Q. An evolutionary advance that first appeared in echinoderms wasa. radial symmetryb. one-way digestive systemc. external digestiond. endoskeleton

Solved • Nov 7, 2017

Echinoderms

Q. In vertebrates the blastopore becomes the anus, and during cleavage, the regulatory signal in the egg are evenly distributed in the cells. An inver...

Solved • Nov 7, 2017

Echinoderms

Q. Which of the following is not an example of an echinoderm?a. Sea starb. Sea lillyc. Sea cucumberd. Sea squirt

Solved • Nov 7, 2017

Echinoderms

Q. The water vascular system:a. Is used to distribute water to the tube feetb. Is used to regenerate body partsc. Is used to filter feedd. Is used for...

Solved • Nov 7, 2017

Echinoderms

Q. The water vascular system is characteristics of:a. Echinoderms onlyb. Echinoderms and chordatesc. Chordates onlyd. Arthropods only

Solved • Nov 7, 2017

Echinoderms

Q. The larval stage of a sea stara. Has radial symmetryb. Has pentaradial symmetryc. Has bilateral symmetryd. Is symmetrical

Solved • Nov 7, 2017