Do Molluscs Lay Eggs?

Mollusks reproduce sexually, and most species have separate sexes. Sexual reproduction is achieved by the formation and fusion of gametes: sperm and eggs. ... During external fertilization, the female lays eggs, and they are fertilized by the male sperm outside of the female's body.

Do molluscs lay eggs or give birth?

HOW DO MOLLUSKS REPRODUCE? Mollusks reproduce sexually. Slugs and snails are hermaphrodites (possessing both male and female organs), but they must still mate to fertilize their eggs. Most aquatic mollusks lay eggs that hatch into small, free-swimming larvae called veliger.

Are mollusks born without shells?

Clams, pipis, scallops, mussels and oysters are all different types of molluscs. Not all molluscs have shells. For example, an octopus is also a mollusc and it doesn't have a shell. But the molluscs who do have shells have to build their own shell from scratch.