Molluscs: Unveiling the World of Soft-Bodied Creatures

Molluscs are soft-bodied animals, often with a hard outer shell called a mantle. They primarily inhabit oceans, but some live on land or in freshwater. Molluscs are classified into three groups: gastropods, bivalves, and cephalopods. Their anatomy includes a radula for feeding and a foot for movement. Molluscs exhibit bilateral symmetry and reproduce sexually. They are considered the most intelligent invertebrates, capable of using tools and solving problems.

Which of the following is NOT a group of molluscs?

• Cephalopods

• Bivalves

• Gastropods

• Arthropods

What is the primary function of the radula in molluscs?

• To scrape food particles

• To reproduce

• To protect the body

• To aid in movement

Which organ in molluscs is primarily used for locomotion?

• Mantle

• Radula

• Foot

• Shell

What is a common characteristic of molluscs regarding their body symmetry?

• Radial symmetry

• Asymmetry

• Bilateral symmetry

• Spherical symmetry

How do molluscs typically reproduce?

• Sexually

• By binary fission

• By budding

• Asexually

What cognitive abilities are molluscs known for?

• Simple reflex actions

• Basic survival instincts

• Advanced learning and problem-solving

• Limited memory retention