3. Razor clam is a common name for several species of bivalve mollusks in the family Pharidae.

PYTANIA:
1. What is a razor clam?
2. How many species of razor clams are there?
3. What family do razor clams belong to?
4. Are razor clams common or rare?
5. Where can razor clams be found?

ODPOWIEDZI:
1. Razor clam is a type of bivalve mollusk found in marine environments.
2. There are several species of razor clams.
3. Razor clams belong to the family Pharidae.
4. Razor clams are relatively common.
5. Razor clams can be found in various marine habitats around the world.