1. goldfish, tilapia and barracuda belong to which class of fish?

a) osteichthyes
b) chondrichthyes
c) agnatha
d) countershaded

2. lamprey and remoras belong to which class of fish?

a) osteichthyes
b) chondrichthyes
c) agnatha
d) countershaded

3. while fishing you reel in a fish that you've never seen before. it is a dark blue-grey on its dorsal (top) side and white on its ventral (underbelly) side. what type of coloration does this fish demonstrate?

a) disruptive
b) cryptic
c) predatory
d) countershade