Food Webs and Food Chains Lesson 3

Which organisms use the energy from the sun to make food for other organisms?

• Carnivores

• Herbivores

• Consumers

• Producers

What travels through a food chain?

• Ecosystems

• Herbivores

• Nutrients and Minerals

• Air and Sunshine

What would happen if the majority of an animal population in a food web dies?

• The food web will change.

• The food web will stop.

• The producers will also die.

• The decomposers will die.

Which of these is the original source of most food energy?

• insects

• heat

• ecosystems

• sunlight

A pet owner released their Python snakes into the everglades. There were other species of snakes that already lived in the everglades, but within a few months, only the Pythons were found in the ecosystem. Which of these best explains what happened?

• All the new species of snakes had an advantage in the ecosystem.

• Too many snakes caused an imbalance to the ecosystem, so the food web was affected.

• The new species was bigger than the other snakes in the Everglades.

• The other species was already dying out, and the new species was the last to survive.

An eagle and a snake both are competing for the same food in the same food web. How are they both able to survive?

• The eagle eats the snake.

• The eagle changes its diet.

• One animal moves to a different habitat.

• They hunt at different times, there for they don't interfere with each other.

In a food chain, a frog eats a mosquito, a snake eats the frog. What is the role of the frog in this food chain?

• To be source of energy

• Make a new habitat.

• Reduce the mosquito population.

• Lay its eggs to make more frogs.

A shark eats a seal, the seal ate herring, the herring ate some algae. What is the role of the shark?

• Primary Consumer

• Secondary Consumer

• Producer

• Decomposer