SC.921.L.17.5 Population Size

What determines the size of a population?

• Annual rainfall and temperature

• Births, deaths, immigration, emigration, and limiting factors

• The number of predators in the area

• Geographic location only

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What are density-dependent limiting factors?

• Only human activities like damming rivers

• Only abiotic factors like wind and temperature

• Factors that are independent of population density

• Factors that operate when population density lowers survival odds

What is a community in ecological terms?

• A single species' population size

• A group of the same species living together

• Interaction among different populations in a given area

• Non-living components of an environment

Tags

NGSS.MS-LS2-2

What is carrying capacity?

• The total area an organism can occupy

• The maximum number of organisms an environment can support

• The speed at which a population grows

• The number of species in a community

Tags

NGSS.MS-LS2-4

What pattern of growth occurs under ideal conditions with unlimited resources?

• Exponential growth

• Logistic growth

• Static growth

• Declining growth

What can cause a population's growth to slow down?

• Increase in immigration

• Density-dependent limiting factors

• Decrease in death rate

• Unlimited resources

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

What is an ecosystem?

• Interaction among community members and their environment

• A collection of abiotic factors

• The climate and weather patterns of a region

• A group of individuals of the same species

What are biotic limiting factors?

• Space, light, water, wind

• Human activities like pollution

• Food, competition, predation, diseases, parasites

• Seasonal cycles, unusual weather

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is biodiversity?

• The variety of life on Earth

• The number of individuals in a population

• The growth rate of a population

• The amount of water in an ecosystem

Tags

NGSS.MS-LS2-5

Why is biodiversity important?

• It influences many aspects of the ecosystem

• It ensures unlimited resources

• It guarantees constant temperature

• It prevents all natural disasters

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-5