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WorksheetsEcology Unit Review
Total questions: 37
Worksheet time: 8hrs 3mins
Define "limiting factor"
anything that constrains a population's size and slows or stops it from growing
when population increases slowly at first then grow at an accelerated rate
minimum number of individuals of a species that an environment can support
maximum number of individuals of a species that an environment can support
Insects get necatr from flowers. They also transfer the pollen that gets stuck in their bodies to another flower
Mutualism
Commensalism
Parasitism
Competition
Predation
An oyster attaches itself to a mangrove. They oyester has a place to live, but the mangrove is unharmed
Mutualism
Commensalism
Parasitism
Competition
Predation
If a population grows larger than the carrying capacity of its environment, the
death rate may rise
birth rate may rise
death rate must fall
birth rate must fall
According to the graph, what is causing the deer population to decrease
They got sick
The wolf population is decreasing
The wolf population increased
They ran out of food
Predator population lags behind prey population because......
Increase in predators leads to decrease in prey
Increase in predators leads to increase in prey
Increase in predators leads to decrease in producers
Increase in producers leads to increase in prey
When the bird called the oxpecker lands on the rhinocerus to eat the ticks that cover its body, it is an example of what type of relationship?
mutualism
commensalism
predation
parasitism
An INVASIVE SPECIES could cause a DISRUPTION in an ecosystem by...
helping new EXTINCT species survive
dramatically increasing the effects of CLIMATE CHANGE
taking over and changing an entire ECOSYSTEM or FOOD WEB
creating more space for NATIVE SPECIES
A species that plays a critical role in the health, maintenance, growth, or definition of an ecosystem.
keystone
invasive
engineer
predator
Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?
There would be a decrease in the small bird population.
There would be a decrease in the grass/flowers population.
There would be a decrease in the mice population.
There would be an increase in the grass/flowers population.
Which of the following activities contributes the most to carbon emissions globally?
Agriculture
Burning fossil fuels
Respiration
Deforestation
Which community has higher species evenness?
Community A
Community B
Species richness is
a measure of how all of the individual organisms in an ecosystem are balanced between the different species.
the total number of different species found in an ecosystem
Emigration is
the movement out of an area
the movement into an area
movement in and out of an area
migration
Why don't populations grow indefinitely?
limiting factors
only biotic factors
only abiotic factors
none of the above
What is the arrow pointing at?
carrying capacity
biotic potential
density-independent
density dependent
What is the carrying capacity mean?
The number of individuals an area can carry
the number of births
The number of deaths an area has
not sure
(Im)migration is ...
the movement into an area
The movement out of an area
The migration process
exponential graph
10. Which of these daily human activities would have a beneficial impact on the environment?
A. letting water run while brushing teeth
B. leaving a ceiling fan on when departing a room
C. removing a nonnative, invasive plant species from a habitat
D. throwing away plastic bottles in containers designated for the landfill
The primary cause of invasive species introduction is
too much food
human actions
weather events
asteroids
An alien (non-native to the ecosystem) species, usually brought to an area by humans, that competes for resources and causes problems for the native species within an ecosystem
Environment
Ecosystem
Invasive Species
Population
If the plant population decreased, the amount of carbon dioxide in the atmosphere would _________.
Which of the following forms of biodiversity describes the differences between individuals within the same species?
Species
Habitat
Genetic
None of the Above
Why is biodiversity in an ecosystem so important?
Because it can help humans where to determine good places to develop farm land.
Because places that have a healthy biodiversity are unaffected by major disturbances.
Because having a high biodiversity allows ecosystems to withstand major changes.
Because having a high biodiversity allows for fewer opportunities of competition for similar resources.
Which of the following is an example of a non-renewable resource?
Solar Energy
Wind Energy
Hydro Energy
Fossil Fuel Energy
