The video tutorial explains the roles of prey and predators in food chains, using examples like eagles and rabbits. It introduces predator-prey cycles, focusing on the lynx and hare relationship, and analyzes data showing cyclic patterns in their populations. The video details how predator and prey numbers rise and fall in cycles, emphasizing their interdependence. It concludes with additional resources for further learning.

What role does the eagle play in the food chain example provided?

• Scavenger

• Herbivore

• Prey

• Predator

What might happen if the rabbit population decreases significantly?

• Eagles will start eating plants

• Eagles will stop hunting

• Eagles might switch to other prey like foxes or mice

• Eagles will become extinct

What is a key characteristic of predator-prey cycles?

• They are random and unpredictable

• They are constant and unchanging

• They show a cyclic pattern of rise and fall

• They only occur in aquatic environments

What happens to predator numbers when prey numbers increase?

• Predator numbers decrease

• Predator numbers increase

• Predator numbers become extinct

• Predator numbers remain the same

Why do predator numbers fall after reaching a peak?

• Because there is less food available

• Because prey numbers increase

• Because predators stop reproducing

• Because predators migrate

What is the relationship between the number of hares and lynxes?

• Hares depend on lynxes, but not vice versa

• Dependent on each other

• Lynxes depend on hares, but not vice versa

• Independent of each other

What is the main factor that allows predators to reproduce successfully?

• Availability of shelter

• Abundance of prey

• Climate conditions

• Lack of competition

What is the effect of high predator numbers on prey populations?

• Prey populations decrease

• Prey populations remain stable

• Prey populations become extinct

• Prey populations increase

What is the term used to describe the repeated rise and fall of predator and prey numbers?

• Population stability

• Food chain

• Ecosystem balance

• Predator-prey cycle

Where can teachers find additional resources related to the video?

• gcse revisionmonkey.com

• sciencesurgery.com

• both a and b

• neither a nor b