The Stickleback Fish and Its Environment Comprehension Check

What is the size of a full-grown stickleback?

• 10 centimeters (4 inches)

• 5 centimeters (2 inches)

• 20 centimeters (8 inches)

• 15 centimeters (6 inches)

How do sticklebacks protect their bodies?

• With scales

• With plates of armor

• With gills

• With fins

What do sticklebacks primarily eat?

• Plants and algae

• They latch on to big fish and feed off of them

• Worms, small shrimp, insect larvae, fish eggs, and small fish

• Seaweed and crustaceans

Which of the following is NOT mentioned as a predator of sticklebacks?

• Birds

• Other fish

• Green darner dragonflies

• Turtles

What is the main habitat of green darner dragonflies?

• Forests

• Ponds and lakes

• Deserts

• Mountains

How do green darner dragonfly nymphs move quickly underwater?

• By flying

• By shooting jets of water

• By crawling on the bottom

• By swimming with their fins

What do green darner dragonfly nymphs primarily feed on?

• Small fish and insects

• Plants and algae

• Snails

• Fish eggs

Where do Chinook salmon live for most of their lives?

• Lakes and ponds

• The ocean

• Rivers and streams

• Coral reefs

What enables Chinook salmon to live in both salt water and freshwater?

• Their ability to breathe underwater

• Their strong jaws

• Their large size

• Their ability to adapt to different environments

How much can a Chinook salmon weigh?

• Up to 10 kilograms (22 pounds)

• Up to 30 kilograms (66 pounds)

• Up to 55 kilograms (120 pounds)

• Up to 80 kilograms (176 pounds)