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Worksheets7th Grade - Ecology Test Review
Total questions: 29
Worksheet time: 29mins
Biodiversity is...
the long-term prevailing weather conditions in a given area
the variety and variability of life on Earth.
the pattern of spacing among individuals within the boundaries of the population.
the study of how complex interactions between biotic and abiotic factors influence variations in population.
The communities of organisms living on the sea floor or river/lake/pond bed of an aquatic environment are called...
prey
detritus
benthos
autotrophs
The Trinidadian Guppy is an example of...
evolutionary change.
an autotroph.
ecological change.
mutualism.
Biotic factors would include which of the following?
temperature.
soil.
salinity.
other organisms.
What does this represent?
predation
allopatric speciation
mutualism
sympatric speciation
What does this represent?
predation
allopatric speciation
mutualism
sympatric speciation
What does this represent?
protective coloration
mimicry
mutualism
sympatric speciation
What does this represent?
allopatric speciation
evolutionary change
mimicry
protective coloration
What does this represent?
allopatric speciation
evolutionary change
mimicry
protective coloration
What is a positive/negative ecological interaction in which one species benefits by feeding on the other species, which is harmed?
exploitation
mutualism
competition
commensalism
What is a negative/negative interaction that occurs when individuals of different species compete for a resource that limits the survival and reproduction of each species?
exploitation
mutualism
competition
commensalism
What is a positive/neutral ecological interaction that benefits one organism while having no effect on the other (Examples: Cattle Egrets/African Buffalo: Buffalo stir up insects while grazing, egrets eat the insects)?
exploitation
mutualism
competition
commensalism
What is a positive/positive ecological interaction that benefits each of the interacting species; (Example: Acacia Trees/Ants: Trees are food and habitat, ants provide protection)?
exploitation
mutualism
competition
commensalism
Organisms that are able to produce their own food sources by using sunlight
autotrophs
heterotrophs
mimics
predators
Organisms that can only get energy by consuming other organisms
autotrophs
heterotrophs
mimics
producers
Which city has the highest population density?
Kokomo, IN
New York, NY
Chicago, IL
Fort Wayne, IN
Which city has the lowest population density?
Kokomo, IN
New York, NY
Chicago, IL
Fort Wayne, IN
In competitive exclusion...
one species is better adapted to utilize resources than other competitive species.
one species forces another to leave a particular area.
all populations are negatively affected.
all creatures live in harmony.
These diagrams best describe the concept of...
population size
population density
population dispersion
population shmopulation
When a group of organisms move into a new environment or population, that is called...
immigration.
emigration.
invasive species.
adaptive radiation.
When a group of organisms move out of an ecosystem, that is called...
immigration.
emigration.
invasive species.
adaptive radiation.
If an ecosystem has only one apex predator, the removal of that predator from the ecosystem will...
lead to higher populations of the prey of the apex predator.
lead to lower populations of the prey of the apex predator.
not affect the populations of the prey of the apex predator.
lead to higher populations of scavengers.
If an ecosystem experiences a boost in the populations of herbivores...
it will lead to higher populations of producers.
it will lead to lower populations of the apex predator.
not affect the populations of the apex predator.
lead to lower populations of producers.
Which one of these is an invasive species?
What says that "The length of a food chain is limited by the inefficiency of energy transfer along the chain."?
energetic hypothesis
population dynamics
life table
population dispersion
What is the maximum population size that a particular environment can sustain?
competitive exclusion
population dispersion
carrying capacity
energetic hypothesis
Select the density-dependent factor.
predation
average yearly rainfall
climate
average yearly snowfall
Select the density-independent factor.
availability of food
predation
climate
disease
How much wood would a woodchuck chuck if a woodchuck could chuck wood?
He would chuck all day and chuck all night if a woodchuck could chuck wood.
He would chuck as much as a woodchuck chucks when a woodchuck does chuck wood.
Woodchuck chucks chunks of chunky man Chuck.
If the wood is chucked at Chuck Norris, Chuck Norris will chuck roundhouse kicks that chuck the woodchuck and his entire species out of existence.
