Question

5 Marine science questions? Will award everything!

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

Answer 1

4. You are a marine biologist exploring some of the deepest parts of the ocean. You come across a new organism that has some interesting adaptations. One of those adaptations is that is the organism has no eyes. What is the most logical purpose for this adaptation?

A) attract prey
B) relies on other adaptations due to darkness
C) pressure would be too great for eyes
D) helps it blend in with the environment

5. While fishing you reel in a fish that you've never seen before. It has a interesting patterns and markings and is brightly colored. What type of coloration does this fish demonstrate?

A) disruptive
B) cryptic
C) coral
D) countershading

Answer 2

1. Osteoichthes (boney fishes)

2. Agnatha

3. Countershade

4. relies on other senses

5. Unsure

Answer 3

I'm guessing disruptive for number 5. Disruptive coloration is exhibited by zebras, clownfish, etc. They can have lots of brilliant colors but as long as they look bizarre it helps camouflage them in large groups.

Cryptic coloration makes an organism appear a different shape or texture,coral coloration is not a thing (I believe), and countershading is what sharks have (see question 3).

Answer 4

Thank you!