LS2.1 - Ecosystem Dynamics and Population Factors

Groups of different organisms living together and how they influence each other is (a)   . Groups within a species and how they live together in one geographic area is ​ (b)   . ​ (c)   is the study of how all living and nonliving things interact withing an entire ecosystem.

• Community Ecology
• Population Ecology
• Ecosystem Ecology
• Species Interaction Study
• Habitat Analysis
• Biodiversity Assessment

Choose the factor(s) that influence a population's density.

• immigration

• emigration

• births

• deaths

• climate

The things in an ecosystem that keep a population from growing too large or too quickly are known as

(a)  

• limiting factors.
• growth enhancers.
• population boosters.
• ecosystem expanders.

Which two limiting factors were REMOVED from the Dallas area for mosquitos in 2012?

• temperature

• space

• pesticides

• predators

The number of individuals that a habitat can sustain with the resources it has available is known as the ​ (a)   .

• carrying capacity
• population density
• habitat fragmentation
• resource depletion

Which is NOT an example of a density dependent limiting factor?

• disease

• predators

• resources (food/water/space)

• weather

Choose the examples of density independent limiting factors.

• asteroid

• hurricane

• wildfire

• temperature shift

• new predator

The portion of the graph where a populations growth has stabilized (flattened out) is known as the ​ (a)   .

• carrying capacity
• exponential growth
• population decline
• resource depletion