Ecology Quiz 3 version 1

Which of the following is NOT a factor that affects population size?

• natality

• mortality

• immigration

• emigration

• all of these affect population size

A forest fire wipes out thousands of acres in California. This is an example of a density-_________________ limiting factor

• dependent

• independent

• affective

• reducing

A graph that shows exponential population growth is also known as a __ curve.

• k

• j

• s

• v

Carrying capacity is the _______________ number of individuals that an environment can support.

• maximum

• least

• average

Lichen is.....

• the climax stage of secondary succession

• a type of moss

• a parasitic relationship between fungus and bacteria

• the pioneer species in primary succession