Ecosystem Energy Flow and Predator-Prey Cycles Quiz

What is the primary purpose of a food chain in an ecosystem?

• To highlight the role of decomposers

• To display the energy production of producers

• To illustrate what eats what in a simplified manner

• To show all interactions in an ecosystem

Which of the following is an example of a producer in a food chain?

• Owl

• Mouse

• Rabbit

• Grass

What term is used to describe the energy stored in plants after photosynthesis?

• Starch

• Chlorophyll

• Glucose

• Biomass

In a food chain, what type of organism is a primary consumer?

• An organism that eats producers

• A predator

• A photosynthetic organism

• An organism that decomposes organic matter

How much energy is typically passed from one trophic level to the next in a food chain?

• 1%

• 10%

• 50%

• 100%

What do the arrows in a food chain represent?

• The speed of energy transfer

• The hierarchy of organisms

• The size of the population

• The direction of energy flow

What is a predator-prey cycle?

• A graph showing energy flow

• A sequence of food chain levels

• A cycle of energy production

• A pattern of population changes between predators and prey

Why does the predator population lag behind the prey population in a predator-prey cycle?

• Prey are more adaptable to changes

• Prey have more food sources

• Predators reproduce faster than prey

• Predators rely on prey for food, causing a delay

What happens to the prey population when the predator population is low?

• It becomes extinct

• It increases

• It decreases rapidly

• It remains stable

What is the main reason for the cyclical nature of predator-prey populations?

• Immediate response to food availability

• Long time required for population changes

• Stable food supply

• Constant environmental conditions