interpreting food webs

1. If a drought kills the grass, which of the following is most likely to occur within this ecosystem? (Choose all 3 that apply)

• The rabbits will leave to find a new food source

• The population of leaves will decrease

• The snake population will decrease

• The caterpillars will immediately die because they lost their food source

• The population of leaves will increase

2. Rabies killed majority of the fox population in this ecosystem. Which of the following is most likely to occur as a result? (Choose all 4 that apply)

• Rabbit population increases
• Grasshopper population decreases
• Carrot population decreases
• Bird population increases
• Carrot population increases

3. There is an overpopulation of rabbits in this ecosystem. Which of the following is most likely to occur in this ecosystem? (Choose all 3 that apply)

• Caterpillar population decreases
• Thrush will leave to find another food source
• Grass population decreases
• Caterpillar population increases
• Grass population increases

4. A new pesticide has accidentally killed the plantain population. Which of the following is most likely to occur as a result? (Choose all 4 that apply)

• Berry population will decrease
• Rabbits will leave to find another food source
• The titmouse (bird) population will decrease
• The snake population will decrease
• Berry population will increase

5. A new insecticide has killed the butterfly and fruit fly population. Which of the following is most likely to occur as a result? (choose all 3 that apply)

• Flowering plant population will increase
• Dragonfly population will leave to find another food source
• Grasshopper population will decrease
• Flowering plant population will decrease
• Dragonfly population will overpopulate

6. Select all of the true statements

• The snake and the mountain lion compete for the rabbit

• The deer is a primary consumer

• The hawk is a secondary consumer and a tertiary consumer

• The snake and the hawk compete for the shrew

• The snake is a secondary and a tertiary consumer

7. Select all 3 of the true statements

• The caterpillar and the rabbit compete for the grass
• The hawk and the fox compete for the squirrel and the mouse
• The fox is a secondary consumer and a tertiary consumer
• The mouse only competes with the squirrel
• The hawk is a tertiary consumer in every food chain

8. A new type of plant was introduced to an ecosystem, which species benefited from the introduction of the plant?

• Species A
• Species B

9. A disease killed a population of grasshoppers. Which of the follow best explains the graph below

• Species A and Species B compete for the grasshoppers
• Species B is consumed by the grasshoppers
• Species A is consumed by the grasshoppers
• Species B consumes only grasshoppers as a major part of their diet

What organism turns sunlight into sugar?

• Producers

• primary consumers

• secondary consumer

• tertiary consumer