Here are some MCQs on Fishes & Mollusks
1. Which of the following is not a characteristic feature of fishes?
a) Presence of gills
b) Cold-blooded
c) Breathe through lungs
d) Possess scales
2. Fishes can be found in which of the following environments?
a) Marine
b) Freshwater
c) Both a and b
d) None of the above
3. Which of the following is an example of a cartilaginous fish?
a) Tuna
b) Salmon
c) Shark
d) Cod
4. The largest fish species is:
a) Whale shark
b) Great white shark
c) Bluefin tuna
d) Manta ray
5. Fishes respire through:
a) Gills
b) Lungs
c) Spiracles
d) Skin