Chondrichthyes is a term for vertebrates that have a skeleton _____.
a. made of cartilage
b. and scales
c. made of bone
d. that is brittle
e. on the outside of their body
Answer: A
Chondrichthyes is a term for vertebrates that have a skeleton _____.
a. made of cartilage
b. and scales
c. made of bone
d. that is brittle
e. on the outside of their body