Download Exam 6 Review - Iowa State University

Leader: Julie
Course: Bio 211 (2)
Instructor: Biederman
Supplemental Instruction
Date:
Iowa State University
1.) Which of the following is not an abiotic factor that affects distribution?
A) Salinity
B) PH
C) Sunlight
D) Predators
Review for Exam 6:
Chapter 54, 56, 57
2.) The main reason polar regions are cooler than the equator is because
A) There is more ice at the poles
B) Sunlight strikes the poles at a lower angle
C) The poles are farther from the sun
D) The atmosphere is thicker at the poles
E) The poles are permanently tilted away from the sun
3.) The maximum population size that a particular environment can support is best known as
A) Carrying Capacity
B) R max
C) Population size
D) Per capita population growth
4.) What is constructed by following the fate of a cohort, from birth until all are dead?
A) climograph
B) life table
C) rate table
D) mortality table
5.) Which of the following are important biotic factors that affect the structure and
organization of biotic communities?
A) precipitation, wind
B) nutrient availablity, soil pH
C) predation, competition
D) temperature, water
E) light intensity, seasonality
6.) 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
7.) The gradual and continuous change in species compostition and community structure over time is
known as _________.
A) Remodeling
B) Succession
C) Commensalism
D) Relative Abundance
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8.) Interactions among organisms are referred to as __________.
A) Organismal interaction
B) Biotic interaction
C) Community interaction
D) Abiotic interaction
9.) 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
10.) A population is correctly defined as having which of the following characteristics?
I. Inhabiting the same area
II. Individuals belonging to the same species
III. possessing constant and uniform dispersion
A) I only
B) III only
C) I and II
D) II and III
E) I, II, and III
11.) List the 3 different types of dispersion and identify the most and least common type. (provide
your own answers)
12.) 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
13.) Per capita rate of increase (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]
14.) Which of the following values indicates the highest rate of growth for a population
A) dN/dt = 0.5 N
B) dN/dt = 1.0 N
C) dN/dt = 0.0 N
D) dN/dt = -0.5 N
E) dN/dt = -1.0 N
15.) Exponential growth cannot be sustained for long in any population because
A) resources are unlimited
B) environments are patchy
C) resources are limited
D) most organisms produce a few offspring
E) most plants are wind dispersed
16.) A graph that charts the annual precipitation on the y axis and average temperature on the x axis
is called a ___________.
A) Food web
B) Biome map
C) Climograph
D) Biograph
17.) Animals like Pacific salmon, which reproduce once before dying are referred to as
A) iteroparous
B) uniform
C) cohort
D) random
E) semelparous
18.) K–selected populations can also be described as
A) un-crowded.
B) density independent
C) well below carrying capacity
D) having unlimited resources
E) density dependent
19.) Exponential population growth results in what type of curve?
A) S-shaped
B) J-shaped
C) M-shaped
D) U-shaped
20.) Which biome is the largest biome found on earth?
A) Tundra
B) Open Ocean
C) Desert
D) Tropical Rain Forest
21.) Permafrost that restricts plant growth is a characteristic of which biome?
A) Cold desert
B) Temperate grassland
C) Tundra
D) Taiga
22.) There are many biomes. What biome is Iowa mainly considered?
A) Tropical Rain Forest
B) Tundra
C) Deciduous Forest
D) Temperate Grassland
23.) Which of the following leads to an addition of density?
A) Birth and Emigration
B) Birth and Immigration
C) Death and Immigration
D) Death and Emigration
24.) Which is the most important abiotic factor affecting distribution?
A) Water
B) Salinity
C) Temperature
D) Sunlight
25.) How is a population different from a community? (write your own answer)
26.) What allows there to be seasons on earth?
A) Coriolis effect
B) Solar intensity
C) Tilt of the earth’s axis
D) microclimate
27.) Which biome has substantial rainfall yet a distinct dry season and a dense forest floor?
A) Tropical deciduous forest
B) Temperate rainforest
C) Temperate deciduous forest
D) Tropical grassland
28.) Zero population growth occurs when _________ ___________ equals ________ _______.
(provide own answer)
29.) Demography is the study of which of the following?
A) Reproductive strategies
B) Change in population size over time
C) Pattern of spacing among individuals
D) Number of individuals in an area
30) Which of the following terms encompasses all the others
A) species diversity
B) biodiversity
C) genetic diversity
D) ecosystem diversity
E) species richness
31.) What abiotic factor does not affect climate
A) Temperature
B) Disturbance
C) Precipitation
D) Wind
32.) individuals that are evenly spaced and influenced by social interactions is what kinds of
dispersion?
A) uniform
B) clumped
C) equal
D) random
33.) Julie was walking through the bayou in her homeland of New Orleans and recorded 53 pelicans
per square mile. Then she came back to ISU and recorded only 2 pelicans per square mile in a
different marsh. What was she comparing?
A) carrying capacity
B) species richness
C) range
D) density
34.) During exponential growth, a population always
A) exhibits and S-shaped curve
B) quickly reaches its carrying capacity
C) looses some individuals to emigration
D) grows at its maximum per capita rate
35) Which of the following is considered to be the greatest threat to biodiversity?
A) increased atmospheric carbon dioxide
B) habitat destruction
C) over exploitation of species
D) biological reserves
36.) Species richness increases
A) as community size decreases
B) as rates of precipitation decrease
C) as you travel north from the equator
D) as you travel north from the South Pole
37.) A biome is a(n)
A) major type of ecosystem
B) specific set of biotic factors
C) major type of community
D) specific set of abiotic factors
38.) the species richness of a community refers to the number of different ________ present in the
community
A) species
B) organisms
C) food chains
D) trophic levels
39.) A broad-based, pyramid-shaped age structure is characteristic of a population that is _____.
A) stable
B) decreasing
C) growing rapidly
D) at carrying capacity
40.) In your own words, explain the difference between science and advocacy.
41.)_________ mimicry is when two or more harmful species resemble each other while
____________ mimicry is when a harmless species mimics a harmful species.
A) Batesian, Mullerian
B) Mullerian, Batesian.
42.) Commensalism is an interaction when …
A) both species benefit
B) one species benefits and the other suffers
C) one species benefits and the other has no effect
43.) Which of the following inter-specific interactions can be described as -/A) herbivory
B parasitism
C) predation
D) competition
E) commensalism
44.) The place where an organism could live if no competitors are present can also be
called it?
A) realized niche
B) fundamental niche
C) home range
D) home base
E) home sweet home