TROPHIC LEVEL & THE TRANSFER OF ENERGY

Which of the following best describes the transfer of energy in an ecosystem?

• Energy flows from producers to consumers to decomposers.

• Energy flows from decomposers to consumers to producers.

• Energy flows from consumers to producers to decomposers.

• Energy flows from producers to decomposers to consumers

Which of the following statement best describes the food chain?

• How organisms find mates.

• How energy and nutrients pass from one organism to another.

• The different types of food organisms eat.

• The habitats of different organisms.

What is a trophic level?

• The level of biodiversity in an ecosystem.

• The position an organism occupies in a food chain.

• The process of photosynthesis in plants.

• The amount of water available in an ecosystem.

Which is NOT true about organisms at the highest trophic level in an energy pyramid?

• They are apex consumers.

• They can be meat and vegetable eater.

• They get the least amount of energy.

• They get the greatest amount of energy.

Why is it important to maintain the ecological balance in an ecosystem?

• To prevent the extinction of species

• To ensure a stable food supply

• To maintain biodiversity

• All of the above

In a forest, which makes its own food?

• Mushrooms

• Germs

• Grass

• Rabbits

What breaks down dead things?

• Producers

• Consumers

• Decomposers

• Hunters

Where does most ecosystem energy come from?

• Earth's heat

• Chemicals

• Wind

• Sun

What job do things like worms and mushrooms do in an ecosystem?

• They make their own food.

• They eat other living things.

• They break down dead plants and animals, putting important stuff back into the soil.

• They hunt other animals for food.

In a forest, which of these living things makes its own food using sunlight?

• Mushrooms

• Tiny germs (bacteria)

• Grass and trees

• Rabbits