Predicting effects of limited resources

1. What is a limited resource in an ecosystem?

• A. A resource that is always abundant
  

• 
  B. A resource that is never used by organisms
  

• C. A resource that is available in finite quantities
  

• D. A resource that only plants need

2. How would a decrease in available water affect a population of deer in a forest?

• A. The deer population would increase
  

• B. The deer population would decrease
  

• C. The deer population would remain unchanged
  

• D. More deer would be born

3. Which scenario best demonstrates competition for limited resources?

• A. Birds eating different types of seeds

• B. Multiple plants growing toward the same light source

• C. Fish swimming in different directions

• D. Insects pollinating various flowers

4. What typically happens when a population exceeds its resource limits?

• A. The population continues to grow indefinitely

• B. Resources become more abundant

• C. The population size decreases

• D. New resources are created

5. In a lake ecosystem, what might cause fish populations to decline?

• A. Too much sunlight

• B. Excessive oxygen

• C. Decreased water temperature

• D. Insufficient food supply

6. How do limited resources affect population growth?

• A. They have no effect on population growth

• B. They encourage unlimited growth

• C. They act as a natural control on growth

• D. They increase birth rates

7. What is carrying capacity?

• A. The maximum weight an animal can carry

• B. The maximum population size an environment can support

• C. The minimum number of organisms needed

• D. The speed at which organisms move

8. When resources become scarce, organisms typically:

• A. Migrate to new areas

• B. Stop reproducing completely

• C. Create new resources

• D. Become more efficient predators

9. Which resource is most likely to limit plant growth in a desert ecosystem?

• A. Carbon dioxide

• B. Water

• 
  C. Sunlight
  

• D. Space

10. How do organisms usually respond to resource competition?

• A. They develop new ways to share resources

• B. They adapt or move to different niches

• C. They stop using resources completely

• D. They produce more offspring