5.1 How Populations Grow [Pt 1]

5.1

How

Populations

Grow

Part 1

Open Ended

What affects population size?

Multiple Choice

Ecologist study populations by examining :

__________________

Growth rate

Density and distribution

Age structure

• climate

• geographic range

• water consumption

• phosphorus cycles

Open Ended

Identify a population and their geographic range.

Fill in the Blank

_______ rate- the rate the size of a population changes (increase or decrease)

Fill in the Blank

___________ growth rate- increasing population size

Fill in the Blank

_________ growth rate- decreasing population size

Fill in the Blank

Population _______- number of individuals that can be found per unit area

Fill in the Blank

Population __________- describes the way individuals are spaced out across their range

Multiple Choice

_______ structure -the ages and sexes of the individuals in the population

• time

• feeding

• life

• age

Poll

If the death rate is higher than the birth rate, what will happen to the population size?

• decrease

• increase

Poll

If the birth rate is higher than the death rate, what will happen to the population size?

• increase

• decrease

Multiple Choice

____________- individuals move into a population’s range

• Emigration

• Immigration

Multiple Choice

____________- individuals move out of the population's range

• Emigration

• Immigration