Population Ecology

A group of individuals that interbreed and produce fertile offspring is a common definition for __________.

• ecology

• species

• population

• community

Which of the following includes only biotic factors?

• ecosystem

• habitat

• biosphere

• population

Which of the following describes a population that is distributed evenly across an area?

• random

• uniform

• clumped

• crowded

Which of the following is NOT included in a typical age structure diagram?

• the population's sex ratio

• the relative numbers of people in different age groups

• the population's historical growth

• the proportion of reproductive-aged individuals

Which of the following terms describes seasonal movement of individuals into and out of a population?

• immigration

• emigration

• natality

• migration

Which of the following equations summarizes population growth?

• immigration - emigration

• (immigration + births) + (emigration + deaths)

• births - deaths

• (immigration + births) - (emigration + deaths)

The largest population size a given environment can sustainably support is known as its ___________.

• limiting capacity

• logistic limit

• carrying capacity

• biotic potential

A population that increases 5 percent every year is said to be experiencing____________.

• exponential growth

• logistic growth

• unlimited growth

• maximum growth

The primary difference between a community and an ecosystem includes biotic factors.

• True

• False

A population's distribution describes how crowded it is.

• True

• False