Population Ecology II

Front

What is the best definition of a population?

Back

The number of individuals of one species living in the same place

Front

Which of the following is likely to cause an increase in birth rate? Options: water shortage, low rainfall, increased food supply, more predators

Back

increased food supply

Front

Organisms trying to obtain the same resources is called

Back

competition

Front

In the predator prey graph shown here, what causes the rise in the prey numbers? Options: Decrease in prey, Increase in predators, Decrease in predators, Lack of competition

Back

Decrease in predators

Front

During deer rutting season, male deer will fight for the chance to mate with the females in the herd. This is an example of: predation, saprophytism, cooperation, competition

Back

competition

Front

Rushes are plants which grow very successfully in wet soils. What does this mean?

Back

They will compete with sundew plants which also grow in wet soil.

Front

Groups of different species living in the same area at the same time

Back

communities

Front

Carrying capacity

Back

the maximum population size that can be supported by an ecosystem.

Front

Predation, disease and competition are examples of ………………………factors.

Back

density-dependent

Front

The average number of individuals of the same species per unit of surface area at a given time is the ……………………

Back

population density