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- 1. Multiple Choice
Which of the following is not a biotic factor in an ecosystem?
bacteria
insects
leaves
wind
- 2. Multiple Choice
The physical location of an ecosystem in which a given species lives is called a
habitat
niche
locale
biotic zone
- 3. Multiple Choice
Consumers are organisms that
eat only other animal species.
are also known as self-feeders
get their energy by eating other organisms
occupy an ecosystem’s lowest energy level
- 4. Multiple Choice
Which organism is likely to be in the bottom trophic level of a land food chain?
grasshoppers
mouse
grass
owl
- 5. Multiple Choice
The organisms most likely to belong to the same population are
birds in a forest
organisms in a pond
people at a football game
bacteria inside a person’s body
- 6. Multiple Choice
Which list shows a possible order in which energy moves through an ecosystem?
Producer
Herbivore
Carnivore
Sun
Producer
Carnivore
Herbivore
Sun
Sun
producer
herbivore
carnivore
sun
producer
carnivore
herbivore
- 7. Multiple Choice
If producers started with 700 kcal energy, about how much energy would be passed to secondary consumers?
7000 kcal
70 kcal
7 kcal
0.7 kcal
- 8. Multiple Choice
The community of Northside High School is made up of all
the computers, desks, and chairs.
teachers, counselors, students, computers, desks, and chairs
students, lunchroom workers, trays, teachers, and custodians.
the students, lunchroom workers, teachers, custodians, and plants in the greenhouse.
- 9. Multiple Choice
Which of the following correctly lists the levels of environmental organization from smallest to largest?
population, community, ecosystem, biosphere
community, population, ecosystem, biosphere
population, community, biosphere, ecosystem
community, population, biosphere, ecosystem
- 10. Multiple Choice
The difference between a community and an ecosystem is that
a community includes one species living in an area whereas an ecosystem includes multiple species living in an area.
an ecosystem includes one species living in an area whereas a community includes multiple species living in an area.
a community includes all organisms living in an area whereas an ecosystem includes all organisms and the abiotic factors they interact with.
an ecosystem includes all organisms living in an area whereas a community includes all organisms and the abiotic factors they interact with.
- 11. Multiple Choice
Which of the following describes soil and temperature in an ecosystem?
biotic factors
abiotic factors
selection factors
unnecessary factors
- 12. Multiple Choice
Decomposers such as bacteria and fungi are important in a food chain because they
produce their own food using light from the sun.
stop the flow of energy from one organism to another.
break down dead organisms and return nutrients to the soil.
are microscopic and other organisms cannot consume them.
- 13. Multiple Choice
What term describes a complex network of relationships in which energy is transmitted from one organism to the next?
food web
trophic level
food chain
energy pyramid
- 14. Multiple Choice
Which organism would occupy the level on an ecological pyramid with the most energy?
ladybug
bobcat
pigeon
carrot
- 15. Multiple Choice
Which level of this ecological pyramid represents the level with the smallest amount of biomass?
Algae
Minnows
Copepods
Bass
- 16. Multiple Choice
Which energy pyramid best represents the data in the table?
- 17. Multiple Choice
Which organism directly provides energy for the largest number of other organisms in this ecosystem?
Seal
Herring
Bluefish
Snapper
- 18. Multiple Choice
Which of the following best explains why there are seldom more than five trophic levels in a food chain?
Trophic levels above this number contain too many individuals.
Most carnivores function at more than one trophic level.
The ecosystem contains too much biomass.
Energy is lost from each trophic level.
- 19. Multiple Choice
Which of the following is an herbivore?
Birds
Grasshopper
Grasses
Owls
- 20. Multiple Choice
Which of the following is an omnivore?
Birds
Grasshopper
Grasses
Owls
- 21. Multiple Choice
Which of the following is an producer?
Birds
Grasshopper
Grasses
Owls
- 22. Multiple Choice
Which of the following is an carnivore?
Birds
Grasshopper
Grasses
Owls
- 23. Multiple Choice
Which of the following is both a primary and a secondary consumer?
Birds
grasses
owls
rabbits
grasshopper
- 24. Multiple Choice
What order consumer would the fox be considered?
Primary
Secondary
Tertiary
Both Primary and Secondary
Both Secondary and Tertiary
- 25. Multiple Choice
How much energy was lost if the owl received 50 kcal of energy from eating the mouse?
5 kcal
45 kcal
50 kcal
450 kcal
500 kcal
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