Understanding Population Pyramids and Predator-Prey Relationships

What is the main reason organisms at the bottom of the population pyramid have larger populations?

• They are more intelligent.

• They reproduce faster.

• They are more aggressive.

• They have more energy available.

Which of the following is NOT a predator-prey relationship?

• Bird and grasshopper

• Snake and bird

• Plant and sunlight

• Grasshopper and plant

In a food chain, what role does a grasshopper play?

• Producer

• Predator

• Consumer

• Decomposer

If population A decreases while population C increases, what can be inferred?

• A is a predator of C.

• C is a predator of A.

• A and C are unrelated.

• A and C are mutual predators.

What does a smaller population size at the top of a population pyramid indicate?

• The organism is a decomposer.

• The organism is a producer.

• The organism has more energy.

• The organism is a predator.