Factors Affecting Population in an Ecosystem

What is the definition of population?

• The number of organisms of a particular species in an ecosystem

• The different species living in an ecosystem

• The organisms living in an ecosystem and their interactions with the physical characteristics

• The specific role played by an organism within an ecosystem

What is the definition of community?

• The number of organisms of a particular species in an ecosystem

• The different species living in an ecosystem

• The organisms living in an ecosystem and their interactions with the physical characteristics

• The specific role played by an organism within an ecosystem

What is the definition of ecosystem?

• The number of organisms of a particular species in an ecosystem

• The different species living in an ecosystem

• The organisms living in an ecosystem and their interactions with the physical characteristics

• The specific role played by an organism within an ecosystem

What is the definition of niche?

• The number of organisms of a particular species in an ecosystem

• The different species living in an ecosystem

• The organisms living in an ecosystem and their interactions with the physical characteristics

• The specific role played by an organism within an ecosystem

What does the graph of population growth over time typically look like?

• Slow growth, rapid exponential growth, slow growth, leveling off

• Rapid exponential growth, leveling off, slow growth, rapid exponential growth

• Leveling off, slow growth, rapid exponential growth, slow growth

• Rapid exponential growth, slow growth, leveling off, slow growth

What is the carrying capacity of a population?

• The point where growth slows down and population size becomes constant

• The point where growth is rapid and population size increases exponentially

• The point where growth is slow and population size is low

• The point where growth is rapid and population size is high

Which of the following is an abiotic factor that affects plants?

• Competition

• Mates

• Disease

• Carbon dioxide concentration

Which of the following is an abiotic factor that affects animals?

• Competition

• Mates

• Disease

• Oxygen concentration

Which of the following is a biotic factor that affects plants?

• Light intensity due to shade from other plants

• Water availability

• Temperature

• Humidity of the air

What is an example of inter-specific competition?

• Two rabbits competing for food

• Two rabbits competing for mates

• A rabbit and a hare competing for food

• A rabbit and a hare competing for mates