Multiple Choice
A madreporite is
A) the swim bladder of ray-finned fishes.
B) the pectoral appendages of lungfish.
C) a sac at the base of the tube foot of echinoderms which regulate water flow.
D) a porous, sieve-like plate on the body surface of an echinoderm.
E) blocks of muscle on each side of the tunicate body.
Correct Answer:
Verified
Correct Answer:
Verified
Q8: In the embryos of the Pharyngotremata the
Q9: Fishes are divided into two classes, Chondrichthyes
Q10: The marsupials and eutherians are separated according
Q11: The bony fishes (Osteichthyes) are divided into
Q12: Lungfishes and amphibians are similar in that<br>A)
Q14: Chordates are so named because of their<br>A)
Q15: When the spicules of an echinoderm are
Q16: An exact relationship between the many hominid
Q17: Primates can be classified into two groups
Q18: A monkey hanging from its tail must