E.S. 2.17 Assessment

Which of the following is an example of an abiotic part of an ecosystem?

• A rotting log

• A winding creek

• A dead leaf

• A nut on a tree

Which of the following best describes consumers?

• Organisms that are able to make sugars for energy

• Organisms that must eat other animals for energy

• Organisms that must eat plants or animals for energy

• Organisms that break down dead bodies and waste for energy

Which of the following shows an accurate path of food energy?

• Sun fish plant bear

• Bear fish plant sun

• Sun plant fish bear

• Plant fish bear sun

If the sun were completely blocked so that it no longer provided energy to the plants in a lake, what would happen to the remaining life in the lake?

• Only the animals that eat the plants would die

• Only the plants would die

• All the carnivores would die

• All the organisms in the lake would die

Which claims are supported by the diagram shown? Select all that apply.

• 90 percent of the energy at a trophic level is transferred to the next trophic level.

• 10 percent of the energy at a trophic level is transferred to the next trophic level.

• The highest trophic level receives the least amount of energy in an ecosystem.

• The lowest trophic level receives the least amount of energy in an ecosystem.

Which statement best describes the difference between a producer and consumer?

• A producer is in a higher trophic level than a consumer.

• A consumer makes its own food whereas a producer obtains food by eating other organisms.

• A producer breaks down dead and decaying organisms while a consumer always eats other animals.

• A producer obtains energy from sunlight while a consumer obtains energy by feeding on other organisms.

Using the following food chain, match each organism with the correct trophic level. Grass, rabbit, snake, eagle

• Producer

• Snake

• Tertiary consumer

• Rabbit

• Primary consumer

• Grass

• Secondary consumer

• Eagle

Which of the following eats decaying matter?

• Producer

• Primary consumer

• Secondary consumer

• Tertiary consumer

• Decomposer

Which of the following eats herbivores?

• Producer

• Primary consumer

• Secondary consumer

• Tertiary consumer

• Decomposer

Which of the following eats other carnivores?

• Producer

• Primary consumer

• Secondary consumer

• Tertiary consumer

• Decomposer