Ecosystems List A

What are abiotic factors in an ecosystem?

• Living organisms in an environment

• Nonliving parts of an ecosystem

• A group of similar organisms

• A community of organisms

What does biodiversity refer to?

• The number of individuals in an area

• The variety of life in a habitat or ecosystem

• The nonliving parts of an ecosystem

• A group of similar organisms

What does the biosphere consist of?

• Only the land on Earth

• All life on Earth and all parts of Earth where life exists

• Only the water bodies on Earth

• Only the atmosphere

What are density dependent factors?

• Factors that affect all populations regardless of size

• Factors that depend on population size

• Nonliving parts of an ecosystem

• A group of similar organisms

Which term describes a relationship between two species in which both benefit?

• Parasitism

• Mutualism

• Predation

• Stability

What is an organism's particular role in an ecosystem called?

• Equilibrium

• Stability

• Niche

• Symbiotic

What do you call an animal that hunts other animals for food?

• Prey

• Host

• Predator

• Niche

What is an organism that is killed and eaten by another organism called?

• Predator

• Prey

• Host

• Symbiotic

What is a state in which opposing forces or influences are balanced?

• Symbiotic

• Equilibrium

• Mutualism

• Predation

What term involves a close relationship of mutual dependence?

• Parasitism

• Symbiotic

• Host

• Stability