Monday, December 15, 2014

Ecology Review Questions


Use the food web to the right to answer the following questions:

  1. What is the producer in this environment?
  2. What are the tertiary consumers?
  3. Give two examples of competition in this food web.
  4. Identify the omnivore in this food web.
  5. Identify the decomposer in this food web.
  6. Which animals are herbivores?
  7. Give an example of a predator-prey relationship.
  8. If the grasshopper population decrease, what will be the effect on the populations of grass, frogs, and beetles?
  9. Name two biotic and two abiotic factors that affect this food web.
  10. How many hawks can be supported by 25,000 grasshoppers?

 

 


Population
 
Use the graph of the carrying capacity of deer to the right to answer the following questions.

http://i.ytimg.com/vi/J1Qe5Ad3ap8/maxresdefault.jpg

  1. What is the carrying capacity of this ecosystem?
  2. What happened in 1850 to make the deer population drop so rapidly?
  3. What happened in 1900 to make the deer population grow so much?

Use the scenario below to answer questions 14 – 16.

There was a large wildfire that destroyed large fields of grasses and shrubs in this ecosystem.

  1. How would this effect the carrying capacity of this ecosystem?
  2. What would happen to the population of deer?
  3. Wolves are predators of the deer what do you think would happen to the wolf population following this wildfire?

 

Use the scenario below to answer questions 17-20.

A new species of rabbit is introduced to the area and its population begins to grow rapidly. The rabbits eat the same food as the deer.

  1. What is the ecological relationship between the rabbits and the deer?
  2. Will the deer population increase or decrease? Explain.
  3. Will the wolf population increase or decrease? Explain.
  4. The rabbit population grows and grows and then suddenly drops a great amount, give a reason for what might have occurred?