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WorksheetsEcology(Limiting Factors)
Total questions: 15
Worksheet time: 4hrs 31mins
Which statement best explains section X?
competition does not occur between members of different species in the same habitat
energy is used for interbreeding between members of different species
the population has reached the carrying capacity of its environment
a predator recycles the remains of dead organisms
When water used to cool machinery is returned to a river, it raises the river water temperature. This causes a sharp decline in small invertebrate populations. Based on the food web, a likely consequence of this change would be:
an increase in the number of clams.
an increase in the number of water plants.
an increase in the number of crayfish.
an increase in the number of crabs.
A chemical pesticide was put on an area of the ecosystem to the right by a landowner to control the mouse population. There was a decrease in the mouse population due to the use of this pesticide.
Which one of the following would most likely happen first because of this change in the ecosystem?
The amount of grass would decrease
the snake population would increase
The snake's food supply would increase
The rabbit's food supply would increase
The harvest mouse population is
decreasing. A reason for this
decrease might be that ____.
the song sparrow population has increased.
the smelt population has decreased.
the marsh hawk population has increased.
the snail population has decreased.
Food, water, sunlight, air, soil are resources that are often __________.
limiting factors
wet
messy
found in rocks
The number of individuals a habitat can sustain with the resources it has available
Carrying capacity
Limiting factors
Resources
Population
Nonliving parts of an ecosystem
Biotic
Abiotic
Prebiotic
Nonbiotic
The living parts of an ecosystem
Biotic
Abiotic
Antibiotic
Probiotic
All members of one species in a certain area.
Population
Limiting Factors
Immigration
Birth Rate
If there is more food than usual in an ecosystem, then...
Populations will stay the same
Populations will decrease
Populations will increase
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
The bird population would stay the same
The bird population would infinitely increase
The bird population would decrease
What 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 them
All of the population of organisms would increase
The biotic factors in the ecosystem would increase
The hawks predators would decrease
Temperature, light, air, water, and soil are all _____ parts of the environment
alive
biotic
abiotic
living
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
The frogs' predators will increase and they frogs' prey in increase.
We better all pray because there isn't anymore frogs.
What happens when an environment reaches its carrying capacity?
Populations will decrease
Resources such as food, water, and space will be unlimited
Populations will increase
Nothing, everything will stay the same.
