Pre-Assessment: Sharks

Front

How much of a shark's brain is dedicated to the sense of smell?

Back

2/3rds of a shark's brain is dedicated to the sense of smell, which is crucial for hunting and navigation.

Front

What is the function of the Nictitating Membrane in sharks?

Back

The Nictitating Membrane protects the shark's eyes while feeding and does not allow the shark to sleep.

Front

How many species of sharks are there in the world?

Back

There are approximately 400 known species of sharks.

Front

What group of fish do sharks belong to?

Back

Sharks belong to the group of fish called Chondrichthyes, which are characterized by having a cartilaginous skeleton.

Front

What is a shark's skeleton made of?

Back

A shark's skeleton is made of cartilage, which is lighter and more flexible than bone.

Front

What is the primary sense that sharks use to detect prey?

Back

Sharks primarily use their sense of smell to detect prey, which is highly developed.

Front

Do sharks have bones?

Back

No, sharks do not have bones; their skeletons are made of cartilage.

Front

What is the role of the lateral line system in sharks?

Back

The lateral line system helps sharks detect vibrations and movements in the water.

Front

Are all sharks dangerous to humans?

Back

No, not all sharks are dangerous to humans; most species are harmless.

Front

What adaptations help sharks to be effective predators?

Back

Sharks have sharp teeth, a streamlined body, and excellent senses that make them effective predators.