Echinoderms belong to the Class Asteroidea, one of the best-regarded groups. There are 1500 kinds diagnosed so far. There is an important disc at the asteroid frame surrounded with the aid of using radiating hands. Within this disc are the fundamental organs. Sea stars and starfish belong to the magnificence Asteroidea (even though they absolutely are not fish). Asteroidea refers to stars in Greek, and this magnificence has a pentaradial frame plan and an excessive quantity of cell species. A starfish's mouth is fashioned with the aid of using 5 grooves that meet withinside the center. Try this Class Asteroidea trivia quiz and mark the highest score!
1. The term echinoderms means?
A. Tube feet
B. Star shaped
C. Spiny skin
D. Stomach foot
2. What is an example of an echinoderm?
C. Sea cucumber
D. All of these
3. Bivalvia, snail's corals, and polychaetes are sources of food for
A. sea stars
4. Sea stars belong to the class of?
5. The sea star has ____________ in its stomach.
A. 2 compartments
B. 3 compartments
C. single bag
D. 5 regions
6. Each arm of the sea star consists of
A. 2 gonads
B. 2 testes
C. 2 openings
D. radial canals
7. The middle part of the central disk composed of
A. oral opening
B. tube feet
8. The pincher-like structure of some types of echinoderms, such as the sea star, is known as
B. dermal branchiae
9. The meaning of Asteroidea in Greek is
10. The major organ in an Asteroid body?
A. Central disc
11. The number of Asteroid species recognized so far?
12. Ossicles run along the oral surface of the arm and are referred to as
D. ambulacral groove
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