FOOD CHAIN AND FOOD WEB

Plants, insects, frogs, and snakes live in an ecosystem. What would happen if the snakes were removed from the ecosystem?

• Insect population would increase.

• Frog population would decrease.

• Frog population would increase.

• Plant population would decrease.

What type of organisms make their own food for energy?

• Producers

• Predators

• Consumers

• Decomposers

What does the arrow represent in a food chain?

• How far organisms live from each other.

• The transfer of energy from one organism to another.

• The size of the organisms from smallest to largest.

• The amount of energy the organism receives from the sun.

Consumer is...

• An organism that makes its own food for energy.

• Energy that moves through a food chain starts with--

• The path of food energy from one organism to another.

• An organism that gets energy from eating another organism.

Based on the picture, which includes herbivore is...

• frog

• Grasshopper

• Snake

• eagle

A new fish that also eats plants is introduced into a pond. What changes would occur to this pond ecosystem?

• The large fish population will decrease.

• The plant population will decrease.

• The small fish population will increase.

• The new fish population will decrease.

Based on the food chain, what effect would be the most likely direct result of increasing the number of fish?

• Beetles would have trouble finding food.

• There would be more kinds of plants.

• The population of beetles decreased.

• Plants would no longer survive in this habitat.

Which of the following is represented in the diagram?

• Evaporation of water

• Reflection of light

• Animal life cycle

• Transfer of energy

In an energy pyramid, energy_______ as you move up the pyramid

• Increases

• Decreases

• Stays the same

• Changes up and down

In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?

• 10%

• 20%

• 80%

• 90%