Ecologists measure soil temperature in a grassland. How should they classify soil temperature?
1 Foundations of Ecology Online Quiz Questions
Use this free practice quiz with 20 questions to review 1 Foundations of Ecology, test your knowledge, and prepare for your next test or exam.
True or false: A living organism that serves as food for another organism is a biotic factor.
- A
True
- B
False
A researcher studies how the water-storing tissues of one cactus help it survive in a dry habitat. Which area of ecology best fits this study?
- A
Population ecology
- B
Community ecology
- C
Organismal ecology
- D
Ecosystem ecology
Researchers track rabbits of one species living in the same grassland. What ecological level does this group represent?
What ecological level encompasses all of Earth's ecosystems and the parts of Earth where life exists?
A pollinator gains food from a flower while helping transfer pollen. This is an example of .
An interaction in which one organism benefits while harming its host is called .
True or false: An ecosystem includes a community together with the abiotic environment it interacts with.
- A
True
- B
False
In a pond, frogs, algae, insects, and fish of different species live and interact. Which ecological level does this group of living populations represent?
- A
A community
- B
A population
- C
An organism
- D
The biosphere
Select all the abiotic factors in this pond ecosystem: water temperature, frogs, dissolved oxygen, sunlight, algae, and sediment.
- A
Water temperature
- B
Frogs
- C
Dissolved oxygen
- D
Sunlight
- E
Algae
- F
Sediment
Select all statements that correctly define the named ecological interaction.
- A
Predation: one organism consumes another.
- B
Herbivory: an animal eats a plant or alga.
- C
Parasitism: one organism benefits while harming its host.
- D
Competition: organisms use an overlapping limited resource.
- E
Mutualism: both partners benefit from the interaction.
- F
Mutualism: both partners are harmed by the interaction.
Explain how a change in rainfall could affect more than one ecological level. Include the role of plants and at least one other part of the community.
Two kinds of organisms rely on the same limited nesting sites in an area. Which statement best explains why their relationship can be described as competition?
- A
Only populations of different species can compete.
- B
Competition occurs only when organisms directly attack each other.
- C
Competition can occur when organisms use an overlapping limited resource.
- D
Competition occurs only when both organisms benefit.
A field observer sees an animal eating an alga. Which ecological interaction is being observed?
- A
Predation
- B
Herbivory
- C
Parasitism
- D
Mutualism
A field ecologist records birds, insects, grasses, and soil acidity. Which observation describes an abiotic factor?
- A
The number of birds nesting in the area
- B
The acidity of the soil
- C
The abundance of insects
- D
The grasses growing in the field
An animal feeds on a living plant. What ecological interaction does this describe?
A pollinator gets food from a flower while helping transfer its pollen. Which interaction best describes this relationship?
- A
Parasitism, because the flower is harmed
- B
Competition, because both organisms need food
- C
Mutualism, because both organisms benefit
- D
Predation, because the pollinator consumes the flower
In a crowded patch, grasses and young trees both depend on the limited sunlight reaching the ground. Which interaction is occurring between them?
- A
Predation
- B
Competition
- C
Mutualism
- D
Parasitism
A meadow contains interacting populations of grasses, insects, and birds. What level of ecological organization do these populations form together?
True or false: Organisms can be affected by their surroundings and can also change those surroundings.
- A
True
- B
False