Gills
A)made of cartilage, which is a strong, elastic connective tissue
B)a deep sea fish with a skeleton of cartilage
C)organs for breathing underwater, consisting of membranes through which oxygen can pass
D)rounded, like something swollen
E)a fin that is a fish's tail
3 answers
C) organs for breathing underwater, consisting of membranes through which oxygen can pass.
Cartilaginous fish have _____ scales.
placoid
single
caudal
overlapping
lateral
placoid
single
caudal
overlapping
lateral
A) placoid
1 answer