WorksheetsSA #1 Review
Total questions: 11
Worksheet time: 18mins
Which of the following is an example of density-dependent factors?
forest fire
floods
food shortage
hurricane
Which of the following is an example of a density-independent factor?
competition
disease
hurricane
predation
What is the role of the decomposers in a food web?
Decomposers are animals that have the ability to eat and survive on both plant and animal matter.
Decomposers help animals camouflage.
Decomposers help organisms carry out cellular respiration.
Decomposers break down dead plant and animal matter so the nutrients in them are recycled back into the ecosystem and available to plants.
Which energy pyramid is most unstable?
Energy Pyramid B
Energy Pyramid A
Compare and contrast abiotic and biotic factors.
How would the squirrel population affect the green plants, owls, and foxes? Would this cause the competition between the owls and foxes to increase or decrease?
How does a decrease in the mosquito population affect the amount of energy available to the frogs?
There will be more energy available to the frogs
There will be the same amount of energy available to the frogs.
There will be less energy available to the frogs.
A population that is at its carrying capacity will typically have a birth rate that is __________ to the death rate.
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How are detritivores and omnivores different?
What is biodiversity and why is it important to ecosystems?
What processes occur during the carbon-oxygen cycle?
