Levels of Organization, Symbiosis, and Succession

Which of the following best describes a population?

• All living organisms in an area

• A community of organisms characterized by climate

• A group of the same species in an area

• Parts of Earth where life exists

What is the biosphere?

• A single ecosystem

• A community of different species

• The parts of Earth where life exists, including Earth's crust and atmosphere

• A specific climate zone

What term is used to describe a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system?

• Biome

• Biosphere

• Ecosystem

• Habitat

Which term refers to large community of plants and animals that occupies a distinct region defined by its climate and vegetation?

• Ecosystem

• Habitat

• Biome

• Biosphere

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

• Soil

• Sunlight

• Fungi

• Temperature

What type of factor is moisture considered in an ecosystem?

• Biotic

• Abiotic

• Neither biotic nor abiotic

• Both biotic and abiotic

Which of the following best describes abiotic factors?

• They are living components of an ecosystem.

• They are non-living components that affect living organisms.

• They only include animals and plants.

• They are factors that do not influence the ecosystem.

What does the term "niche" refer to in an ecological context?

• The physical location where an organism lives

• The way in which an organism fits or plays a role in an ecological community or ecosystem

• The process by which an organism changes its environment

• The competitive interactions between different species

Correctly order the ecological levels of organization (from smallest - 1 to largest - 5)

• Population

• Community

• Biome

• Organism

• Ecosystem

Which of the following best describes competition?

• An interaction when one organism captures and feeds on another

• When organisms share the same biotic and abiotic factors

• When organisms are fighting for the same biotic or abiotic factors.

• A relationship when species live together