mastery quiz 1 (8.11A)

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.
• There would be a decrease in the grass/flowers population.
• There would be a decrease in the mice population.
• There would be an increase in the grass/flowers population.

If additional snakes are introduced into this ecosystem, there will most likely be an immediate decrease in the _________.  

• hawk population
• rabbit population
• wildflower population
• grass population

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

Raccoons eat aquatic animals. If chemicals entered the lake with rain water and destroyed the plants, how would this impact the raccoon population?

• Raccoons would have more aquatic animals to eat.
• Raccoons would begin eating land plants.
• Raccoons would have less aquatic animals to eat.
• Raccoons would only drink water.

Based on these observations on the left. Which of these ecosystems is likely to be the most sustainable?

• Coral Reef

• Geothermal Vent

• Deep Ocean Floor

• Open Ocean