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- 1. Multiple Choice
An organism that makes its own food is called a/an
consumer
heterotroph
autotroph
chloroplast
- 2. Multiple Choice
What is the term for a group of different species in a given area?
community
population
ecosystem
biome
- 3. Multiple Choice
A biome is defined by its
elevation and soil
plant and animal species
latitude and longitude
climate and plant life
- 4. Multiple Choice
What of the following is listed in order correctly from smallest to largest?
organism, community, population, ecosystem, biome
organism, population, community, ecosystem, biome
organism, ecosystem, community, biome, population
organism, population, ecosystem, community, biome
- 5. Multiple Choice
In a typical food chain, about what percentage of energy is passed on to the next trophic level?
1%
10%
25%
15%
- 6. Multiple Choice
How does energy flow in a food chain?
from the lowest trophic level to the highest
from the consumer to the producer
from the sun to the consumer
from the highest trophic level to the lowest
- 7. Multiple Choice
What is the main source of energy for producers (directly) and consumers (indirectly) on earth?
Chemicals
Plants
Water
Sunlight
- 8. Multiple Choice
What happens to a food web's energy at each level?
All the energy is stored within the organism.
Most of the energy is used by the organism for life functions and some is lost as heat.
All the energy is released into the environment.
Some of the energy is stored within the organism; the rest of the energy goes back to the produce.
- 9. Multiple Choice
A top predator such as a shark has a job to keep smaller fish populations under control. The role the shark plays on the reef is called its _____.
habitat
trophic level
competition
ecological niche
- 10. Multiple Choice
Food webs are models that show
one sequence of producers and consumers.
complex networks of feeding relationships.
stored energy in food chains
only primary consumers in an ecosystem
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