Ecology Quiz

What is the study of the interactions between organisms and their environment?

• Ecology

• Biosphere

• Ecosystem

• Habitat

What is the part of the earth where life can exist?

• Biosphere

• Ecosystem

• Habitat

• Community

What are the non-living features of the environment called?

• Abiotic factors

• Biotic factors

• Climatic factors

• Edaphic factors

What is the primary source of energy for life?

• Sun

• Water

• Soil

• Air

What is a sequence of organisms showing transfer of energy from one to the next?

• Food chain

• Food web

• Energy flow

• Niche

What is the role of an organism in an ecosystem called?

• Niche

• Habitat

• Community

• Population

What is the reuse of nutrients in an ecosystem called?

• Nutrient recycling

• Energy flow

• Food chain

• Biosphere

What is the nitrogen cycle needed for?

• To make nitrogen available for living things

• To balance carbon dioxide levels

• To recycle water

• To provide energy

What is the nitrogen cycle needed for?

• To take nitrogen and make it available for living things.

• To convert nitrogen gas into ammonia.

• To recycle nitrates into plant proteins.

• To manage pollution in the environment.

What is nitrogen fixation?

• The conversion of nitrogen gas into usable forms.

• The process of animals excreting nitrogen compounds.

• The absorption of nitrates by plants.

• The decomposition of dead organisms.