Post-Test Ecosystem and Interdependence

Wolves are removed from an ecosystem. What is the MOST likely result?

• Deer population decreases

• Deer population increases

• Plants increase immediately

• No change occurs

Which situation shows BOTH predation and competition?

• A bee pollinating a flower

• Two predators hunting the same prey

• A plant growing in sunlight

• Rain falling on soil

A disease reduces a prey population. What is the BEST prediction?

• Predator population increases

• Predator population decreases

• Competition stops

• Symbiosis increases

Which relationship benefits one organism but harms another?

• Competition

• Mutualism

• Parasitism

• Cooperation

Tags

CCSS.RL.4.3

CCSS.RL.5.3

CCSS.RL.6.3

CCSS.RL.7.3

CCSS.RL.8.3

During a drought, which change happens FIRST in an ecosystem?

• Predators increase

• Plants decrease

• Herbivores increase

• No change

Which statement BEST explains interdependence?

• Organisms live independently

• Organisms depend on each other and environmental factors

• Only predators affect ecosystems

• Only plants affect ecosystems

If pollinators disappear, what is the MOST likely long-term effect?

• Plants increase

• Plants decrease, affecting animals that depend on them

• Predator populations increase

• No effect