Name: ______Date: _____ Period: _____

REVIEW GUIDE - ECOLOGY TEST (Chapters 3 & 4)

To prepare for the test over Chapters 3 and 4, you should review your notes, warm ups, and any assignments we worked on during this time, and the textbook. The glossary will be helpful in defining the words below. This review provides guidance while studying for the test and is not all-inclusive.

1.  Define the following:

a.  Biomass

b.  Biotic (and examples)

c.  Abiotic (and examples)

d.  Trophic levels

e.  Herbivore

f.  Carnivore

g.  Ecological Succession

h.  Omnivore

i.  Decomposer

j.  Autotroph/ Producer

k.  Heterotroph/ Consumer

§  Primary

§  Secondary

§  Tertiary

l.  Nitrogen Fixation

m.  Pioneer Species

n.  Limiting factor

o.  Permafrost

p.  Biogeochemical Cycles

2.  State the levels of organization from smallest to largest in ecology and describe what they mean.

3.  How much energy is passed on to the next trophic level? What happens to the rest of the energy? Be able to calculate the amount of energy at each level and calculate the percentage.

4.  How does matter flow through an ecosystem as opposed to energy?

5.  What is the original source of all energy in an ecosystem?

6.  The biome that may be at greatest risk of destruction by humans is the ______

7.  What are basic parts of the carbon cycle?

8.  What are basic parts of the nitrogen cycle?

9.  A factor that determines the survival of an organism is referred to as a ______factor.

10.  Which biome has deciduous trees, cold winter months and soil that is rich in humus?

11.  Describe some adaptations of organisms in the Tropical Savanna Biome.

a.

b.

c.

12. A population becomes stable when the ______rate becomes equal to the ______rate.

13a.What is symbiosis? What are the three types? Give examples for each

c. 

13b. What is the difference between predation and parasitism?

14.  List four things for which species might compete.

15.  Be familiar with the BIOMES and their basic CLIMATE.

16.  Identify the roles of each of the organisms in the food web. An organism may have more than one role.

Producer / Primary Consumer / Secondary Consumer / Tertiary Consumer / Herbivore / Carnivore / Omnivore

17.  Draw a food chain including 4 organisms starting with carrots.

18. Draw an energy pyramid including 4 organisms starting with a flowering shrub. Label the trophic levels and the percentage of original energy passed to each level.

19. What would happen to the grasshopper population if all the shrews and frogs died?

20.  What would happen to the ecosystem if all the producers died?

21.  Which trophic level is the largest (most biomass) and which one is the least in terms of biomass?

22.  The function of the decomposers is to recycle______

23.  List the two biomes with the least rainfall.

24.  List the two biomes with the coldest temperatures.

25.  List at least three things that affect population size.

ADVANCED