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- 1. Multiple Choice
The study of the interactions of living things with each other and their physical environment.
ecology
limiting factor
biotic factor
abiotic factor
- 2. Multiple Choice
the living and nonliving things present in an ecosystem that prevent a population from growing beyond a certain size, including food, water, available mates, and predators
ecology
limiting factor
biotic factor
abiotic factor
- 3. Multiple Choice
all living things in an ecosystem, including animals, bacteria, plants, fungi, and other living species
ecology
limiting factor
biotic factor
abiotic factor
- 4. Multiple Choice
all nonliving things in an ecosystem, including water, rocks, sunlight, weather, natural disasters, oxygen, space, hunting, and shelter
ecology
limiting factor
biotic factor
abiotic factor
- 5. Multiple Choice
What was the goal of Biosphere 2?
a self-sustaining ecosystem
create limiting factors to keep the population from growing
create a new source of oxygen
to farm animals for food
- 6. Multiple Choice
Which one is an abiotic factor?
water
tree
worm
wolf
- 7. Multiple Choice
Which one is a biotic factor?
water
sunlight
air
fungus
- 8. Multiple Choice
In an ecosystem, living things are called _ and non-living things are called _.
biotic, abiotic
abiotic, biotic
organisms, decomposers
herbivores, decomposers
- 9. Multiple Choice
What happens if a population grows past its carrying capacity?
The population keeps growing
The population starts to die off
The entire species will go extinct
The carrying capacity just increases
- 10. Multiple Choice
This may cause a population to increase
increase of food supply
removal of predators
removal of disease
all of these
- 11. Multiple Choice
Something that regulates the size of a population is called...
a limiting measure
a limiting factor
carrying capacity
biodiversity
- 12. Multiple ChoiceWhich of the following would INCREASE the carrying capacity of an ecosystem?increase in predatorsdiseaseincrease in available fooddrought
- 13. Multiple Choice
When death rate is equal to birth rate...
population increases
population decreases
population stays the same.
population rapidly increases then becomes stable
- 14. Multiple Choice
What is an autotroph?
can synthesize their own food
are dependent on other organisms for their food
decomposer
- 15. Multiple Choice
What is an heterotroph?
can synthesize their own food
are dependent on other organisms for their food
decomposer
- 16. Multiple Choice
What is a saprophyte?
can synthesize their own food
are dependent on other organisms for their food
decomposer
- 17. Multiple Choice
What are three types of symbiotic relationships?
mutualism, commensalism, parasitism
population, community, organism
biotic, abiotic, limiting factor
saprophyte, heterotroph, autotroph
- 18. Multiple Choice
An ecosystem cannot survive without...
sunlight
rabbits
trees
soil
- 19. Multiple Choice
What is a niche?
the job of an organism in an ecosystem
a tree branch with a notch cut out of it
water eroding soil from the edge of a river
plants competing for sunlight
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