Download Exam 6 Review - Iowa State University

Worksheet:
Exam 6 Review
Supplemental Instruction
Iowa State University
Leader:
Course:
Instructor:
Date:
Kelly
Biol 211 (3)
Biederman
4/28/16
1.) 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
Follow up?
2.) A secondary consumer (a fox) receives what percent of the energy fixed by primary producers?
A) 1.0%
B) 0.1%
C) 10%
D) 20%
Follow up?
3) An ecologist records 23 individuals of a rare orchid plants per square mile in a forest preserve and 2
per square mile in a nearby park. What is the ecologist comparing?
A) dispersion
B) density
C) carrying capacity
D) range
E) None of the above
4.) Resource or niche partitioning is best described by which of the following statements?
A) Species diversity is maintained by switching between prey species.
B) A climax community is reached when no new niches are available.
C) Slight variations in niche allow similar species to coexist.
D) Two species can coevolve and share the same niche.
E) Competitive exclusion results in the success of the superior species.
Follow up?
5.) Uniform spacing patterns observed in plants like the creosote bush are most often associated
with
A) chance
B) Patterns of humidity
C) Random distribution of seeds
D) Competitive interactions among individuals
E) The concentration of nutrients
Follow up?
1060 Hixson-Lied Student Success Center  515-294-6624  [email protected]  http://www.si.iastate.edu
6.) Which curve best describes survivorship in elephants
A) Type 1
B) Type 2
C) Type 3
D) none
Follow up?
7.) Species that exert strong control over a community due to their pivotal ecological role are
called:
A) Keystone species
B) Dominant species
C) Top-down species
D) Bottom–up species
8.) The conversion of light energy to plant tissue is an example of
A) secondary production
B) secondary consumption
C) primary production
D) herbivory
E) primary consumption
Follow up?
Population Ecology:
Dispersion - Name all three. Provide an example. Which are common/rare?
1.
2.
3.
Growth:
 Which Demonstrates exponential growth?
Logistic growth?
 What type of conditions allow a
population to demonstrate each curve?
 As the population grows (N increases) what happens to
r on each graph?
 What is K? What is K's
significance to these graphs?
Community Ecology: Where would you expect the highest/lowest species richness?
High Species Richness
Low Species Richness
Explain the difference between Batsian and Mullerian Mimicry. Give examples of each.
Ecosystem Ecology: Which is/are recycled? Source?
Energy Flow
Chemical Cycling
- How many links to food chains typically have? Why?
- What is biomagnification? Give examples.
Biogeochemical Cycles: What effects whether chemicals cycle globally or locally? Give
examples of each.