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WorksheetsEcosystems & Human Impact
Total questions: 33
Worksheet time: 25mins
Click on all the biotic factors
rabbit
tree
soil
water
What is the role of decomposers
They break down dead organisms and return their nutrients back to the ecosystem.
Supply energy to the sun
Help organize the community
Create energy from the sun
Which level in the energy pyramid has the most energy?
Producers (buffalo grass)
Vulture (Level 3 consumer)
Coyote (Level 2 consumer)
Prairie Dog (Primary Consumer)
The threat to biodiversity that occurs when the homes of different species are destroyed
pollution
habitat destruction
overexploitation
climate change
How do the oceans contribute to the amount of Oxygen in the Earth's atmosphere?
Fish in the ocean produce oxygen.
Phytoplankton in the ocean produce oxygen through the process of respiration.
Phytoplankton in the ocean produce oxygen through the process of photosynthesis.
What happens when a fertilizer runoff happens?
Fish get bigger.
Algae grow rapidly.
The water becomes very clear.
What is one way humans are trying to positively impact the ocean?
Fishing
Drilling for oil and natural gas
Creating artificial reefs
An artificial reef is a man made structure that may mimic some of the characteristics of a natural reef.
True
False
How can you help impact the environment in a positive way
recycle
drive less, creating less pollution
save water
all of the above
Coral reefs are endangered by
climate change
overfishing
pollution
all of the above
What type of organism makes its own food?
Autotroph
Heterotroph
What is a lion?
autotroph
heterotroph
What is a worm?
autotroph
heterotroph
What is a lily pad?
autotroph
heterotroph
A flea feeds on a mouse’s blood. This is good for the flea but bad for the mouse.
mutualism
commensalism
parasitism
Hermit crabs live in shells that snails don't use anymore. The hermit crab gets a nice free home. This neither harms nor helps the snails.
mutualism
commensalism
parasitism
Hydro (water) Power is a __________ energy resource.
