3/20/23 Ecosystems Review 1

Choose the TWO things that would happen if one of the populations of organisms in a food web became overpopulated.

• Food supply would increase

• Food supply would decrease

• More competition for resources

• New organisms would come to the ecosystem

Sunlight, pH of water, temperature, rocks, soil and air would all be ____________.

• Biotic 
• Abiotic
• Ecosystems
• Habitats

Carrying Capacity

• Stronger organisms survive but weaker organisms die out.

• A change in organisms to help them survive, but does not change the species of the organism.

• A characteristic of an organism that has a much higher chance of being passed from parents to their young.

• The highest number of organisms that can exist in an ecosystem before becoming too many for the resources around.

True or False: An organism can be added to a food web without other organisms being affected

• False
• True

Select the NATURAL disturbance to an ecosystem

• Clearing land for a new intersection.

• Cutting down trees in a forest for wood to build houses.

• A hurricane's strong winds blowing trees.

How do producers obtain energy?

• Eat other organisms

• Produce their own food

• Eat remains of dead plants and animals

Which statement is best supported by the information shown in the diagram?

• The Adirondack Mountains determine the direction of prevailing winds.

• Human activities can cause pollution.

• Most rain is caused by factories.

• Acid rain is necessary for forest growth.