Ecology Quiz

What is the study of how organisms interact with the living and nonliving things that surround them?

• Biology

• Ecology

• Geology

• Chemistry

Which of the following is an example of an abiotic factor in the environment?

• Plants

• Animals

• Temperature

• Single-celled life forms

Which of the following is an example of a biotic factor in the environment?

• Humidity

• Precipitation

• pH

• Plants

What is the largest level of organization within the environment?

• Community

• Population

• Biosphere

• Organism

Which level of organization includes all of the different populations of organisms living in an area?

• Ecosystem

• Community

• Population

• Organism

What is carrying capacity?

• The number of predators in an ecosystem

• The number of prey in an ecosystem

• The number of organisms of any single species that an ecosystem can support

• The amount of sunlight in an ecosystem

What helps keep the size of a species population under control?

• Predation

• Competition

• Amount of sunlight

• Amount of oxygen

What are limiting factors in an ecosystem?

• Factors that increase the size of populations

• Factors that limit the size of populations

• Factors that have no effect on populations

• Factors that only affect predators

What is a predator?

• An organism that is killed for food

• An organism that kills and eats other organisms

• An organism that only eats plants

• An organism that only eats dead matter

What is an ecological niche?

• The number of organisms in an ecosystem

• The role that each species plays in an ecosystem

• The amount of sunlight in an ecosystem

• The number of predators in an ecosystem