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- 1. Multiple ChoiceLimiting factors are sometimes helpful because they can keep the population from getting too large.TrueFalse
- 2. Multiple ChoiceAny thing or organism that regulates the size of a population of another organism is known as __________.a limiting measurea limiting factorfactorizationmaterialization of precipitation
- 3. Multiple Choice
If a disease destroying barley plants swept through an ecosystem, what would happen to the bird population that eat barley plants?
The bird population would stay the same
The bird population would infinitely increase
The bird population would decrease
- 4. Multiple Choice
What is a producer?
Organism that makes its own energy
Organism that breaks down dead organisms
Organism that eats other organisms for food & energy
Organism that makes its own food
- 5. Multiple Choice
What is a consumer?
Organism that makes its own energy
Organism that breaks down dead organisms
Organism that eats other organisms for food & energy
Organism that makes its own food
- 6. Multiple ChoiceWhat happens when an environment reaches its carrying capacity?Populations will decreaseResources such as food, water, and space will be unlimitedPopulations will increaseNothing, everything will stay the same.
- 7. Multiple Choice
What will happen if all of the frogs in a population die?
The frogs' predators will decrease and the frogs' prey will increase
The frogs' predators will increase and the frogs' prey will decrease
We better all pray because there isn't anymore frogs.
- 8. Multiple ChoiceWhich is NOT needed in order to calculate reproductive potential?percentage of females in the populationsurvival rate of offspringwhat the organism eatsat what age females reproduce
- 9. Multiple ChoiceThe largest number of organisms in a population that the environment can support.Carrying CapacityLimiting FactorReproductive Potential
- 10. Multiple Choice
What are some abiotic factors that could be limiting factors in the Iowa River ecosystem?
Temperature, fertilizer runoff from fields, drought or flood
Invasive species, floods
Temperature, predators, droughts, floods, over fishing
- 11. Multiple ChoiceAge at which females reproduce, how long females live, survival rate of offspring, percentage of females in the population are all needed to calculate . . .limiting factorcarrying capacityreproductive potentiallocation of ecosystem
- 12. Multiple ChoiceTemperature, light, air, water, and soil are all _____ parts of the environmentalivebioticabioticliving
- 13. Multiple ChoiceHow does the coyote act as a limiting factor in the Mono Lake ecosystem?Coyotes steal food from birdsCoyotes may eat female birds so the population will not grow as largeCoyotes scare off other predators and keep the birds safe
- 14. Multiple Choice
Which is evidence of a biotic relationship?
Millions of Brine Shrimp eggs hatch in the spring
In July Eared Grebes begin arriving at Mono Lake
The Algae population reaches its peak in February
When the populations of brine shrimp and brine flies reaches their peak, the algae population is at it's lowest.
- 15. Multiple Choice
How do limiting factors in an ecosystem help keep the ecosystem sustainable?
They limit the amount of change to the ecosystem
They limit the growth of populations within the ecosystem
They limit the factors that can affect the ecosystem
They limit how fast populations change within the ecosystem
- 16. Multiple ChoiceWhat is the carrying capacity of the following graph?10008000800600
- 17. Multiple ChoiceWhen a population grows past the ecosystem's carrying capacity, what happens to the population?Continues to growThe population starts to die off to return to carrying capcityThe population will go extinct due to lack of resourcesThe population grows then finds a new carrying capacity
- 18. Multiple ChoiceWhat is the carrying capacity of the graph?around 500more than 500less than 500around 600
- 19. Multiple ChoiceIf there is more food than usual in an ecosystem, then...Populations will stay the samePopulations will decreasePopulations will increase
- 20. Multiple ChoiceWhat would happen if the population of hawks suddenly increased? How would it affect the other organisms in the ecosystem?The snakes would decrease due to more hawks eating themAll of the population of organisms would increaseThe biotic factors in the ecosystem would increaseThe hawks predators would decrease
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