What is the density of a population?
how much matter is packed into a space.
the number of organisms per unit area.
the change in a population of organisms per unit time.
the limit to how many members of a population can live in a certain area.
What way can a population shrink?
births and immigration
deaths and emigration
births and emigration
deaths and immigration
What populations change faster?
populations that reproduce slowly
populations in a bottleneck
populations that reproduce quickly
smaller organisms
If environmental conditions change, what group is most likely to survive?
the group with the smallest number of individuals
the group with the most individuals
the group that needs the least food
the group that needs the least water
