Adult sea stars are considered to be radially symmetrical because
A) their closest relatives are the radially symmetrical chordates.
B) at least five dissection planes (one through each arm) exist.
C) they have distinct dorsal and ventral surfaces.
D) they lack a notocord.
Correct Answer:
Verified
Q12: Relationships among the animals having body cavities
Q13: Animal body structures and organ systems differentiate
Q14: Neighboring plant or fungal cells share a
Q15: Sponge choanocytes collect food particles,but there is
Q16: Radial symmetry occurs much less commonly than
Q18: Some mollusks feed on cnidarians,absorb intact cnidocytes,and
Q19: Cephalization is clearly adaptive for the free-living
Q20: A variety of tapeworms can infect humans,but
Q21: Many of the organ systems observed in
Q22: Mollusks have evolved a variety of defenses;
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents