Fishes & Mollusks

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