Cetaceans: Ocean Mammals Quiz

What is the largest animal in the world that belongs to the cetacean group?

• Elephant

• Giraffe

• Great White Shark

• Blue Whale

Which of the following is a characteristic of toothed whales?

• They live only in freshwater.

• They have baleen plates.

• They are herbivores.

• They have actual teeth.

What do baleen whales primarily feed on?

• Large fish

• Seals

• Krill and small organisms

• Seaweed

How do cetaceans regulate their body temperature?

• Through their fins

• By drinking warm water

• Through a layer of blubber

• By basking in the sun

What is the purpose of a blowhole in cetaceans?

• To assist in hunting

• To communicate with other cetaceans

• To help them swim faster

• To breathe air at the surface

What is a group of dolphins or whales called?

• A flock

• A pod

• A herd

• A school

Which special ability helps some toothed whales navigate and hunt?

• Bioluminescence

• Echolocation

• Camouflage

• Magnetoreception

Why are cetaceans considered important for ocean ecosystems?

• They produce oxygen.

• They clean the ocean floor.

• They are a primary food source for humans.

• They help control prey populations and deposit nutrients.

What is one way humans can help protect cetaceans?

• By avoiding seafood altogether

• By using more plastic products

• By eating sustainable seafood

• By fishing more frequently

What is a major threat to cetaceans mentioned in the video?

• Overpopulation

• Climate change

• Human activities and pollution

• Predation by larger animals