1st_Science_Molluscs

What of these statements is false?

• Mollusks are soft-bodied organisms

• In general, the mollusk body plan is made up of 3 parts: head, mantle and foot

• The shell of mollusks is always made of two parts

• The foot is used to dig into the substratum

What of these molluska species doesn't have gills?

• Snails

• Mussels

• Octopuses

• Squids

What of these examples are Gastropods?

• Cuttlefish

• Squids

• Octopus

• Slugs

What of these examples is a Bivalve?

• Mussel

• Snails

• Octopus

• Conchs

All Mollusks have....

• Sexual reproduction

• A radula to scrap the substrate

• Lungs to breath on air

• Gills to breath into the water

What of these mollusks undergoes a larval phase in it´s life cycle?

• All the mollusks do it

• Most of bivalve and gastropods species

• Only Squids

• All of gastropods

The Cuttlefish is a...

• Gastropod

• Cephalopod

• Bivalve

• Arthropod

What of these statements (about mollusks) is FALSE?

• The whole of mollusks have a shell

• The body of Gastropoda is soft

• The slugs don’t have shell

• The reproduction in Gastropoda is sexual

What number points out the radula?

• 7

• 11

• 8

• 9

What number points out the gill?

• 3

• 4

• 5

• 6