Supplemental Instruction
Iowa State University
Date:
Leader:
Raelyn
Course:
Biology 211
Instructor: Dr. Raich
1. What dispersions is the most rare form of dispersion?
a. Random dispersion
b. Uniform dispersion
c. Clumped dispersion
2. What abiotic factor(s) affect the distribution of organisms?
a. Temperature
b. Physical barriers
c. Sunlight
d. All of the above
3. The conversion of light energy to plant tissue is an example of
a. Secondary production
b. Secondary consumption
c. Primary production
d. Primary consumption
4. Which of the following inter-specific interactions can be described as -/a. Consumption
b. Mutualism
c. Competition
d. Commensalism
5. Uniform, or evenly spread, spacing patterns observed in plants like the creosote
bush are most often associated with:
a. Chance
b. Random distribution of seeds
c. Competitive interactions among individuals
d. The concentration of nutrients
6. A carp has a large number of offspring, but predators eat many of them during the
first year of life. Once they survive to maturity, they have few predators. What type
of survivorship curve does a carp have
a. Type I
b. Type II
c. Type III
7. A change in the gene pool of a population over successive generation decribes:
a. Mircoevolution
b. Species richness
c. Ecology
d. Metapopulation
8. If actual r<0, this means the population is
a. Increasing
b. Decreasing
c. Not changing
9. Food chains are short because consumers are efficient energy transformers.
a. True
b. False
10. Which is the proper order of the tropic levels?
a. Primary producer, secondary consumer, primary consumer, tertiary
consumer
b. Primary consumer, secondary consumer, tertiary consumer, primary
producer
c. Primary producer, primary consumer, secondary consumer, tertiary
consumer
d. Primary consumer, tertiary consumer, secondary consumer, primary
producer
11. ______ mimicry is when a harmless species mimics a harmful species.
a. Batesian
b. Mullerian
c. Aggression
12. Which is not a rule of ecology according to F.A. Bazzaz?
a. There’s no such thing as a free lunch
b. Everything must go somewhere
c. Everything is not connected
d. All answers are rules of ecology
13. When a population is evenly spaced, this is called
a. Random dispersion
b. Uniform dispersion
c. Clumped dispersion
d. None of the above
14. The amount of chemical energy that is produced/stored by autotrophs and is
available for consumption is called:
a. Net Primary Production
b. Cellular respiration
c. Gross Primary Production
d. Photosynthesis
15. Which of the following inter-specific interactions can be described as +/+
a. Consumption
b. Competition
c. Mutualism
d. Commensalism
16. When a population is seen independent of other individuals, this is called
a. Random dispersion
b. Uniform dispersion
c. Clumped dispersion
d. None of the above
17. _____ mimicry is when two or more harmful species resemble each other.
a. Batesian
b. Mullerian
c. Aggression
18. A cow’s herbivorous diet indicates that it is a(n)
a. Primary consumer
b. Secondary consumer
c. Primary producer
d. Secondary producer
19. Which is not an attribute that describes a population?
a. Species richness
b. Size
c. Demography
d. Genetic characteristics
20. Which of the following is not a threat to biodiversity?
a. Invasive species
b. Habitat destruction and fragmentation
c. Climate change
d. All of the above are threats to biodiversity
21. All else being equal, which island is expected to have the lowest species richness?
a. Smaller and remote islands
b. Larger and remote islands
c. Larger and islands close to the mainland
d. Smaller and islands close to the mainland
22. A change in the size of a population over time can be equated to
a. [births + emigrants] – [deaths + immigrants]
b. [births + immigrants] – [deaths + emigrants]
c. [births - emigrants] + [deaths - immigrants]
d. [births + emigrants] + [deaths + immigrants]
e. [births - immigrants] + [deaths - emigrants]
23. Which survivorship curve best describes a squirrel?
a. Type I
b. Type II
c. Type III
24. The study of how organisms interact with each other and their environment
describes:
a. Population
b. Metapopulation
c. Ecology
d. Gross Primary Production
25. The conversion of light energy to plant tissue is an example of
a. Secondary production
b. Secondary consumption
c. Primary production
d. Primary consumption
26. Converting nitrogen from the atmosphere to biologically available forms is called:
a. Nitrification
b. Fixation
c. Assimilation
d. Denitrification
27. What factor does not influence species richness?
a. Time
b. Space
c. Resource supply
d. All answers influence richness
28. The net population growth rate equation is:
a. d-b=r
b. b-d=r
c. n*b=r
d. n*d=r
29. Which of the following ecosystems would you suspect to have the highest primary
production?
a. Subtropical desert
b. Temperate grassland
c. Boreal forest
d. Tropical dry forest
30. Climate change can influence the population growth of species.
a. True
b. False
31. Match the following inter-species interactions:
Commensalism
Competition
Consumption
Mutualism
(-,+)
(-,-)
(+,+)
(+,0)
32. Label this survivorship graph. What does each letter represent? How do the letters
differ?
33. Label the trophic pyramid. Provide examples in each level.
34. Diagram the difference between a grazing food web and a detrital web.
35. Explain why large top predators are rare in tropic levels.
36. Why can you produce more vegetarians than carnivores?
37. Compare and contrast the energy pyramid and the numbers pyramid. Diagram each out.
38. Label each distribution diagram. Describe and state how common each are.