Have an account?
Skip to Content
Build your own quiz
Suggestions for you
10 questions
Show Answers
See Preview
- 1. Multiple Choice
Which of the following animals is a primary consumer?
- 2. Multiple Choice
Virtually all plants are autotrophic. But there are no autotrophic animals or fungi. What can you infer about autotrophic organisms?
They can move around on their own.
They are at the top of the food chain.
They can make their own energy.
They reproduce slowly.
- 3. Multiple Choice
In one cubic meter of the ocean, photosynthetic plankton produce 80,000 calories of energy each year. How many calories of energy are available in the bodies of the creatures that eat that plankton?
80,000
8,000
800
80
- 4. Multiple Choice
A raccoon consumes 500 calories of food. 50 of those calories are converted to biomass. In other words:
50 calories turn into plant matter.
50 calories leave the raccoon's body as waste.
It uses 50 calories of energy to keep warm, reproduce, and keep warm.
50 calories of energy are stored in it's body.
- 5. Multiple Choice
In most food chains, all of the energy originally comes from:
plants
dead matter that has been recycled by decomposers
heat from within the Earth
the sun
- 6. Multiple Choice
In any ecosystem, there are always more:
herbivores than carnivores
predators than prey
animals than plants
heterotrophs than autotrophs
- 7. Multiple Choice
In an area off the Antarctic coast, elephant seals consume 200,000 calories of squid and small fish every month. How much energy must these squid and small fish consume to sustain the elephant seal population?
400,000
1 million
2 million
20 million
- 8. Multiple Choice
Which organisms do primary consumers mainly eat?
producers
secondary consumers
predators
decomposers
- 9. Multiple Choice
In many cases, secondary consumers cannot digest the bones of their prey. What conclusion can you draw from that?
Eventually all of the energy in those ecosystems will go towards bone formation.
No energy is required to form bones.
Energy used to create bone mass often does not travel farther up the food chain.
Primary consumers form bones from the parts of the plants they cannot digest.
- 10. Multiple Choice
In a marine food chain, small fish eat plankton, big fish eat small fish, and sharks eat big fish. Which organism has the smallest population?
the plankton
the small fish
the big fish
the sharks
- Answer choicesTagsAnswer choicesTags