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

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

what are the awnser choices? i mean, without choices, it is an incompleat