Download Exam 4 Review - Iowa State University

Worksheet:
Exam 4 Review
Supplemental Instruction
Iowa State University
Leader:
Course:
Instructor:
Date:
Kelly
Biol 211 (4)
Holscher
12/13/15
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.) Introduced exotic species
A) can displace natural species with which they become associated.
B) often fail to colonize the new area.
C) may aggressively spread and become pests.
D) Both B and C are correct.
E) A, B, and C are all correct.
Follow up?
4.) Which of the following are important biotic factors that affect the structure and organization of biotic
communities?
A) precipitation, wind
B) nutrient availability, soil pH
C) predation, competition
D) temperature, water
E) light intensity, seasonality
Follow up?
5.) Which of the following causes the Earth’s seasons?
A) global air circulation
B) global ocean currents
C) tilt in the Earth’s axis
D) distance of the Earth from the sun
E) el Nino
6.) 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
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E) None of the above
7.) Which of the following inter-specific interactions can be described as +/+
A) predation
B) parasitism
C) competition
D) mutualism
E) commensalism
Follow up?
8.) Resource 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?
What levels of Ecology have we discussed in this course?
What is a biome?
Terrestrial Biomes:
What is MOST characteristic of this biome?
Aquatic Biomes:
How do nutrients become available in Lakes/Ponds vs. Oceans? What times of year?
What is the difference between the photic and aphotic zones?
Organismal Ecology
Behavior Ecology:
Match the following words with examples. Then decide if they fit into one of the categories in the table
below.
Habituation
Fixed Action
Patter (FAP)
Classical
Conditioning
Taxis
Pheremone
Kinesis
Imprinting
Optimal
Foraging
Hamilton’s Rule
- Altruism
Operant
Conditioning
A person lifts a finger. The dog eventually sits. The dog gets fed. In time, even beginning to lift
a finger leads to the dog sitting.
Goslings are receptive to learning who their mother is early in their development and will follow
the first thing they see upon hatching.
When its humidity increases, woodlice are more likely to remain stationary.
In species of both mammals and birds, individuals that spy a predator will give an alarm call,
alerting other members of their group, even though such an act would seem to call the predator’s
attention to the caller.
Female goldfish release chemicals into the water that boost sperm count in male goldfish.
The aquaspirillum bacteria – they burrow themselves in the mud and they use the magnetic field
of the earth in determining their path.
A cow grazes an electric fence. It feels discomfort. It learns not to go near the fence.
Shore crabs, for example, tend to feed primarily on intermediate-sized mussels which provide the
greatest energetic return; larger mussels provide more energy, but also take considerably more
energy to crack open
Yawns last around 6 seconds and are difficult to stop once started.
A turtle draws its head back into its shell when its shell is touched. After being touched
repeatedly, the turtle realizes it’s not in danger and no longer hides.
Innate
Learned
Nonassociative
Associative
Hamilton’s Rule: What is it? Explain it in your own words. What is the coefficient of
relatedness? How many of these do you know?
Population Ecology:
Dispersion - Name all three. Provide an example. Which are common/rare?
1.
2.
3.
Demography – What is it?
What is a life table? How does it summarize demography? What group is usually observed over time?
What happens to a population if?
Births = Deaths
Births> Deaths
Births<Deaths
What is occurring if the population increases without births?
What is occurring if the population decreases without deaths?
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:
Species Richness
Species Diversity
Where would you expect the highest/lowest species richness? (Think globally and islands)
Succession: Characterize the vegetation in three general steps of succession.
Explain the difference between Batsian and Mullerian Mimicry. Give examples of each.
Ecosystem Ecology: Which is/are recycled? Source?
Energy Flow
Chemical Cycling
- Label the trophic levels. What are trophic levels based on?
- Why does each level get smaller?
- How many links to food chains typically have? Why?
- What is biomagnification? Give an example.
Biogeochemical Cycles:
Reviewing the Nitrogen Cycle – What do you think are the most important things to remember
about this cycle?