Ecology Evidence 3: Populations

In an ecosystem, which is NOT a density-
dependent limiting factor?

• competition
• parasitism
• predation
• natural disaster

Tags

NGSS.MS-LS2-4

If a population grows larger than its environmental carrying capacity, then

• death rate may rise.
• death rate may fall significantly.
• birth rate may rise significantly.
• immigration rate may increase.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

 What does the term carrying capacity describe?

• The maximum number of birth rates for a population.
• The ability of a population to accept new immigrants.
• The ratio of birth rates to death rates in a population.
• The population size that the environment can sustain.

Tags

NGSS.HS-LS2-1

Any abiotic or biotic factor in an ecosystem that causes a population’s size to slow or decrease is a ____________ factor.

• growth
• limiting
• carrying
• density dependent

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

An environmental factor such as predation, disease, and competition that depends on the number of members in a population per unit

• dispersion
• density- independent factor
• density- dependent factor
• population growth rate

Which limiting factor would increase due to the number of individuals in a population?

• Unusual weather
• Natural disaster
• Births
• Disease

Which limiting factor is *independent of the number of individuals in a population (*not affected by population size)?

• competition
• parasitism/disease
• stress
• natural disasters

largest number of individuals of a population that the environment can support  

• carrying capacity
• primary succession 
• denitrification
• mutualism

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Any factor that limits population growth

• Limiting Factor
• Immigration
• Succession
• Abiotic Factor

When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity