MAQ Unit 2 P2 Test

How do Mollusks impact their environment?

• They contribute to ocean acidification

• They have no impact on their environment

• They help maintain balance in marine ecosystems

• They cause overfishing

Which body region of Mollusks contains the internal organs?

• Head

• Visceral mass

• Foot

• Mantle

Which of the following is NOT a role of Mollusks in their environment?

• Producing pearls

• Creating habitats for other organisms

• Providing food for other animals

• Filtering water

Which of the following is NOT a physical characteristic of Mollusks?

• Exoskeleton

• Radula

• Hard shell

• Soft body

Which of the following is NOT a characteristic of Cephalopods?

• Presence of a mantle cavity

• Well-developed eye

• Well-developed nervous system

• Lacks a radula

Which of the following are feeding habits of Mollusks?

• Secreting venom to subdue prey

• Grasping prey with arms

• Using a beak to bite prey

• Filtering food from the water

• All of the Above

Which of the following statements is not true about mollusks?

• They can cause damage to coral reefs

• They help filter water and maintain balance in ecosystems

• They are a source of food for other organisms

• They have no impact on their environment

Which difference between the octopus and the nautilus is not true?

• Presence of a shell

• Number of arms

• Presence of a beak

• A Nautilus can't swim

What is the process of pearl formation in Mollusks?

• Reacting to an irritant in the mantle

• Trapping food particles with mucous

• Secreting the shell

• Filtering water through the gills

Which class of Mollusks is known for their swimming abilities?

• Class Cephalopoda

• Class Gastropoda

• Class Polyplacophora

• Class Bivalvia