Name ___________________________________ Period _________
Unit I Species Interaction Exam Review
Objective #1: Characteristics of Life
1.
In class, students were able to determine that fire has at least 4 of the characteristics of life, therefore it is a living organism.
Agree/Disagree? Explain
2.
List three characteristics of life and explain how you would be able to test these characteristics to determine whether or not
something was living.
3.
Explain why breathing oxygen is not a characteristic of life.
4.
5.
Objective 2: Food Webs
Draw a food web from the pond (Part D) from your field trip notes. Label all the trophic levels and draw all the arrows.
(Study Quiz #1 Review and Quiz #1 for further practice drawing food webs). Draw your food web on a separate sheet of
paper.
a) How do producers obtain their energy?
b) How do consumers obtain their energy?
6.
Why did removing mosquitoes and beetles affect the rest of the food web (Food Web B)?
7.
Explain what the arrows represent in a food chain or web.
8.
a) Give an example of a monoculture.
Objective 3: Biodiversity
b) Give one advantage of monocultures.
9.
a) Give an example of a biodiverse environment .
b) Give one advantage of biodiversity.
10. Contrast (explain the difference between) monoculture and biodiversity. .
11. There are 10 different species and 200 total organisms in a particular ½ acre plot A. Compute the diversity index for this
area.
Show your work.
12. There are 5 different species and 50 total organisms in a particular ½ acre plot B. Compute the diversity index for this area.
Show your work.
13. a) Which plot has the higher biodiversity, A or B. ____
b) Justify (explain) your answer to a) above.
14. How would you rate the biodiversity of Pine Ridge Park? Justify your answer.
Objective #4: The Nitrogen Cycle
1. Describe the role that red alder plays in the nitrogen cycle. (Be sure to describe the process and identify any
other organisms that are involved in this process).
2. Nitrogen is recycled back to the atmosphere through the process known as __________________________.
This results from a specific type of _____________________ living in the soil.
3. a) In what form is nitrogen found in the atmosphere? _____________
b) Describe how green plants get the nitrogen that they need.
c) In what form is this nitrogen found? _________________
d) How do animals obtain the nitrogen that they need?
e) As nitrogen is recycled, chemical bonds are ________________ and ____________________.
4. a) Nitrogen based fertilizer is running off into a pond containing algae and fish. Explain how and why the fish
population living in this pond could be adversely affected (harmed).
b) Give two possible solutions to the problem in a) above.
Objective #5: The Carbon Cycle
1. a) What is the only way that carbon is taken from the atmosphere?
_________________________________________
b) List three ways that carbon is returned to the atmosphere.
_________________________________________, _______________________________________
and _________________________________________________________.
c) In what form does carbon exist in the atmosphere? ________________________
2. Write either “carbon sink” or “carbon source” in the following blanks.
A ________________ ______________ removes carbon dioxide form the atmosphere.
A ________________ ______________ puts carbon dioxide into the atmosphere.
Decaying vegetation in Pine Ridge Park: _________________ _________________
Trees in Pine Ridge Park: ________________ ____________________
The cars driving along the road as we walked to an from Pine Ridge Park: ______________ ____________
The Algae in Goodhope Pond at Pine Ridge Park: _________________ _________________
3.
Carbon Dioxide Lab:
1) What does “Stoichiometry” mean?
2) Read Part C of the lab and explain how nature achieves a balance in cellular respiration.
3) Read part D of the lab (including your equations) and explain how we attempted to emulate this balance
in our stoichiometry experiment.
4. Explain the role that red alder plays in the carbon cycle.
5. a) What is the difference between reforestation and deforestation?
b) Which one has the greater effect on the carbon cycle? Why?
6. Describe two ways in which humans can reduce the amount of CO2 being put into the atmosphere.
Objective #6: Niche / Invasive Species
1.What is a niche? (Refer to your Niche Reading and pages 91-92 in the textbook).
2. Answer the questions from the Niche Reading:
a) Do organisms within the same ecosystem occupy the same niche?
b) Describe why a species with their own niche would be more likely to survive and reproduce.
3. a) Why are invasive species so successful? (Read page 92 and think of how competition plays an important role in
the success of invasive species.
4. Read page 93 and explain the niche for each of the following:
a) mutualism
b) commensalism
c) parasitism
Objective #7: Biomes
1. a) Define the following terms and rank them from 1-5 (1= smallest unit, 5 = largest unit)
Population:
Individual:
Ecosystem:
Community:
Biome:
2. . Distinguish between the following biotic (B) and abiotic factors (A) in a beach ecosystem: sand __,
seaweed ___, driftwood ___, rock ___, crab ___, plastic bottle ___, cotton rope ___, and a sunbather ____.
3. a) What type of biome do we live in here in western WA? _______________ eastern WA? ______________
b) Describe as many differences as you can between these two biomes. Include both biotic and abiotic
factors in you answer.