Concept Attainment Quiz

Match each term on the right to the correct definition. 1. An interaction between organisms that rely on the same resources 2. A self-contained living thing 3. Source from which organisms benefit 4. Two or more members of the same species living in the same habitat 5. The specific environment in which an organism lives

• Resources

• Resources

• Organism

• Ecosystem

• Population

• Competition

• Ecosystem

• Population

• Competition

• Organism

Resources that control the size a population can reach are known as _____________.

• limiting factors

• carrying capacity

• growth regulators

• population controls

When organisms from two different species work together to help each other survive, it is called _____________.

• mutualism

• parasitism

• competition

• predation

Use the clues provided to fill in the blanks. Mountain lions and coyotes _____________ for food resources because they eat the same type of food.

• compete

• cooperate

• migrate

• hibernate

Use the clues provided to fill in the blanks. Competition becomes more important as the number of individuals _____________ or the availability of resources _____________.

• increases, decreases

• decreases, increases

• stays the same, increases

• increases, stays the same

In an ecosystem, organisms and populations with similar needs compete over:

• food and resources

• territory

• mates

• all of the above

How does competition limit the amount of individuals in populations?

• By increasing resources available to all individuals

• By reducing the resources available to some individuals

• By ensuring all individuals have equal access to resources

• By promoting cooperation among individuals