Date ____
Ecology Review
Name ___________________
1. Using the food web make a food chain that is five trophic levels long.
Apex
Predator
Tertiary
Consumer
Secondary
Consumer
Primary
Consumer
Primary
Producer
2. What would happen to the leopard seal population if the krill population decreased?
3. What would happen to krill population if the penguin population decreased?
4. List 3 abiotic characteristics shown in the
desert ecosystem picture.
5. List 3 biotic chraracteristics in a desert
ecosystem.
6. What is an organisms’ niche?
7. Explain why two organisms cannot occupy the same niche?
Ecology Review
Date ____
Name ___________________
8. Differentiate between the following terms: ecosystem, population, community.
9. Why are nitrogen-fixing bacteria important in the nitrogen cycle?
10. What is the role of denitrifying bacteria
in the nitrogen cycle?
11. Which two organisms represented below are heterotrophic
a. A and B
b. B and C
c. C and E
d. D and E
Ecology Review
Date ____
Name ___________________
12. Examples of abiotic factors in an ecosystem include:
a. air temperature, pH, salinity, decomposers
b. oxygen, concentration, producers, water
c. water, pH, salinity, humidity
d. air temperature, fungi, humidity, bacteria
13. All the interconnected feeding relationships in an ecosystem make up a food
a. interaction.
c. network.
b. chain.
d. web.
14. The lowest level of environmental complexity that includes living and nonliving factors is the
a. biome.
c. ecosystem.
b. community.
d. biosphere.
15. Give 1 advantage and 1 disadvantage of the Biomass pyramid.
16. How much energy is lost each trophic level you go up?
17. What is a Niche?
Define each of the following and give an example
18.
19.
20.
21.
Mutualism –
Commensalism –
PredationParasitism –
22. What do each of the following eat?
–
Herbivores –
–
Carnivores –
–
Omnivores –
–
Detritivores –
–
Decomposers –
23. What are some differences between food web and food chain?
24. Describe what you found in your Owl pellet.