Population Ecology Quiz

What factor describes when populations decrease because animals are moving out of a population?

• Emigration

• Limiting Factors

• Immigration

• Exponential Growth

What does the graph represent?

• Emigration
• Exponential growth
• Immigration
• Logistic Growth

Which limiting factor is independent of the number of individuals in a population?

• competition
• parasitism/disease
• stress
• natural disasters

What point on the graph represents the carrying capacity?

• A

• B

• C

• D

A population is...

• All members of one species in one area

• All members of all species that live in one area

• All of the living and nonliving things in an area

• None of these

Which factor is a density-dependent limiting factor on the population of a species?

• seasonal variation
• natural disasters
• unusual weather
• predation

What is happening at the 'A' on the graph?

• the population overshoots above the carrying capacity

• the population stops growing

• growth begins to slow down due to limited resources

• growth is speeding up due to an abundance of resources

To measure population density, you must divide the number of individuals living in a defined space by the

• area of the space
• birth and death rates
• carrying capacity
• height of the space

Nesting birds often space themselves evenly from other nests. This pattern is called

• clumped dispersion.
• uniform dispersion.
• random dispersion
• scatter dispersion

Lichens and mosses that first live in uninhabited areas are examples of

• secondary species
• non-native species
• pioneer species
• climax species