Practice-Population Dynamics

Which ones of the following are examples of abiotic limiting factors?

• A disease

• A drought

• The increased predation

• Humidity

The graph shows the size of a squirrel population over 20 years. What processes would cause the growing population?

• Emigration

• Immigration

• Increased death rate

• Increased birth

If the lions hunt two gazelles on the same day that two gazelles were born, what will happen with that population?

• Gazelles' population will grow.

• Gazelles population will decrease.

• Gazella's population size will be the same.

Which of the following picture is an example of intraspecific competition?

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Herons feed on fish. If a disease becomes a threat to herons, which are of the following statements will come true?

• Herons population would reduce.

• Herons population would increase.

• The fish population would grow.

When a rat eats a grasshopper, the rat is the predator. But when a snake eats the rat, the rat is a prey. Which of the following is a rat´s predator?

• Grasshopper

• Rat

• Plant

• Snake

__________________ocurrs when organisms fight for limited resources.

• Predation (predator-prey)

• Competition

• Cooperation

My favorite lesson was_____________________.

• Introduction to Ecology

• Roles in Energy Transfer

• Population Dynamics