Cartilaginous fishes are characterized by:
A) bony skeletons.
B) four-chambered hearts.
C) lungs supplemented by air sacs.
D) a backbone.
E) sucker-like mouths lined with teeth.
Correct Answer:
Verified
Q34: A shark is a(n):
A)bony fish.
B)cartilaginous fish.
C)jawless fish.
D)amphibian.
E)invertebrate
Q35: The skeletons of rays and skates are
Q36: A lamprey is a(n):
A)bony fish.
B)cartilaginous fish.
C)jawless fish.
D)amphibian.
E)invertebrate
Q37: Chondrichthyes includes:
A)whales.
B)lampreys.
C)all fishes.
D)frogs.
E)sharks.
Q38: Fins composed of a web of skin
Q40: Cartilaginous fishes differ from lampreys because they:
A)lack
Q41: Why do amphibians need a moist environment?
A)The
Q42: Which characteristic do birds share with mammals?
A)a
Q43: The high body temperature of birds and
Q44: An animal that has a four-chambered heart,
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