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WorksheetsEcology Part 2 Review
Total questions: 30
Worksheet time: 16mins
Which option below best defines mutualism?
A symbiotic relationship where both species benefit
A symbiotic relationship where one species benefits and the other is harmed
A symbiotic relationship where one species benefits and the other is neither helped nor harmed
Which option below best defines commensalism?
A symbiotic relationship where both species benefit
A symbiotic relationship where one species benefits and the other is harmed
A symbiotic relationship where one species benefits and the other is neither helped nor harmed
Which option below best defines parasitism?
A symbiotic relationship where both species benefit
A symbiotic relationship where one species benefits and the other is harmed
A symbiotic relationship where one species benefits and the other is neither helped nor harmed
This owl is taking shelter in the tree. What type of symbiosis is being shown?
Mutualism
Commensalism
Parasitism
The bee gets food from the flower, and it also helps to pollinate the flower. What type of symbiosis is being shown?
Mutualism
Commensalism
Parasitism
A species of wasp likes to lay its eggs on the Tomato Hornworm. The wasp larvae grow by taking nutrients from the Hornworm. What type of symbiosis is being shown?
Mutualism
Parasitism
Commensalism
What type of symbiosis occurs between humans and plants?
Mutualism
Commensalism
Parasitism
Which of the following options are reactants/starting materials for photosynthesis?
Sunlight
Sugar
Oxygen
Carbon dioxide
Water
Which of the following options are the end products of photosynthesis?
Sunlight
Sugar/Glucose
Oxygen
Carbon dioxide
Water
Which option below best describes limiting factors?
Two organisms fighting for the same limited resources
Environmental factors that restrict the size of a population
A close relationship between two species where at least one benefits
Which option below best describes competition?
Two organisms fighting for the same limited resources
Environmental factors that restrict the size of a population
A close relationship between two species where at least one benefits
Which of the following would be limiting factors for a rabbit population? Select ALL that apply.
Number of plants
Space
Number of predators
Available drinking water
Carbon Dioxide
Select TWO terms that best relate to the definition of homeostasis.
Balance
Imbalance
Stability
Unstable
When your average body temperature INCREASES, how does your body maintain homeostasis?
By shivering
By sweating
By raising your heart rate
By decreasing your breathing rate
When your average body temperature DECREASES, how does your body maintain homeostasis?
By shivering
By sweating
By raising your heart rate
By decreasing your breathing rate
When you exercise, your body requires more oxygen. How does your body react to maintain homeostasis?
By shivering
By sweating
By decreasing your heart rate & breathing rate
By increasing your heart rate & breathing rate
When you finish exercising, homeostasis will make sure your breathing rate and heart rate...
increases
decreases/returns to normal
stops
Which of the following options show an ecosystem maintaining homeostasis?
Flash floods destroy local crops
A forest fire allows pine tree seeds to be released and grow into mature trees.
Yellowstone Park recovering after the reintroduction of wolves
A volcano erupts and destroys nearby plants and animal habitats
According to this food web, what TWO organisms eat crickets?
Hawk
Shrew
Grasshopper
Frog
What would happen to the shrew and frog population if the cricket population DECREASED?
Their populations would decrease
Their populations would increase
Their populations would not be affected
Why would the frog and shew populations decrease?
Because they have more food
Because they have less food
Because their food source was not affected
What is one POSITIVE outcome in the food web if the cricket population decreased?
Their would be more grasshoppers
There would be less grass
There would more cattails (a plant)
Deer are prey for wolves. What would happen if the WOLF population suddenly INCREASES?
The deer population would stay the same
The deer population would increase
The deer population would decrease
Deer are prey for wolves. What would happen if the DEER population suddenly INCREASES?
The wolf population would stay the same
The wolf population would increase
The wolf population would decrease
Why would the wolf population increase if the deer population also increased?
Because the wolves have more food
Because the wolves have less food
Because the wolves have the same amount of food
Scavengers, like coyotes, often follow wolves and eat the scraps they leave behind. What type symbiosis does this show?
mutualism
parasitism
commensalism
What would most likely happen to the coyote population if the wolf population decreased?
Their population would increase because the coyotes have less predators
Their population would decrease because it would be harder for the coyotes to find food
Their population size would be unaffected.
Which option below best describes invasive species?
A species that normally lives and thrives in a particular area
A group of organisms that are closely related
A non-native species that spreads easily and harms native ecosystems
Which option below best describes native species?
A species that normally lives and thrives in a particular area
A group of organisms that are closely related
A non-native species that spreads easily and harms native ecosystems
Why are invasive species harmful to ecosystems? Select ALL that apply.
Their populations increase (reproduce) rapidly
They don't have natural predators in their new environment
They over-eat the food supply of native species
They are not harmful to ecosystems.
