Biology (Mader), 10th Edition

Chapter 44: Population Ecology

Post-Test

1
If a slice of a pie is used as an analogy for an ecosystem, then _____ could be an analogy for the biosphere.
A)the pie crust
B)the plate on which the pie is served
C)the whole pie
D)the pie filling
2
All the silver maples in a given area make up a(n) _____.
A)population
B)community
C)ecosystem
D)biosphere
3
Silver maples, red oaks, red wolves, deer, robins, blue jays, a fresh water stream, river otters, black rat snakes, various soil bacteria and fungi, loamy soil, and lots of rain in the spring could describe a(n) _____.
A)population
B)community
C)ecosystem
D)biosphere
4
Ecology is the study of _____.
A)animal structures and functions of those structures
B)how organisms adapt to a changing environment
C)the interactions between organisms and the physical environment
D)how living things are organized and classified
5
Modern ecology seeks to _____.
A)describe the interactions between organisms and the physical environment
B)develop models that explain and predict the distribution and abundance of organisms
C)analyze levels of organization and develop models and hypotheses that can be tested
D)All of these
6
Most populations are distributed _____.
A)uniformly
B)randomly
C)in clumps
7
When ecologists study the abiotic components of the environment, they are studying _____.
A)all organisms
B)all predators
C)soil, water, and weather
D)all organisms, soil, water, and weather
8
Ecology and _____ are closely intertwined because ecological interactions act as selective agents.
A)bioengineering
B)taxonomy
C)evolution
D)pathology
9
The distribution of the population in the United States would be best described as _____.
A)random
B)uniform
C)clumped
10
To determine the intrinsic rate of natural increase, it is necessary to consider _____.
A)the rate of immigration
B)the rate of emigration
C)the death rate
11
Populations increase in size when _____.
A)the birth rate exceeds the death rate
B)emigration exceeds immigration
C)mortality exceeds natality
12
Organisms that have only a single reproductive event in their lifetime _____.
A)produce offspring that survive dryness and/or cold
B)expend all their energy in reproduction and then die
C)are members of populations that have discrete patterns of growth
D)All of these
13
Populations are prevented from reaching their biotic potential by _____.
A)a limited supply of food
B)an accumulation of waste products
C)predation
D)All of these
14
During the stable equilibrium phase of a logistic growth curve, _____.
A)growth is slow
B)growth is accelerating
C)there is little if any growth
15
The maximum number of individuals of a given species that can be supported by a given area on a sustained basis is known as _____.
A)biotic potential
B)carrying capacity
C)exponential growth
D)environmental resistance
16
Non-native species like kudzu, zebra mussels, and nutria experience _____ outside their native area due to a lack of natural predators and their ability to compete more successfully than native species for resources.
A)environmental resistance
B)extinction
C)resource partitioning
D)exponential growth
17
The human population has a _____ pattern of growth.
A)logistic
B)exponential
C)None of these
18
K-strategists _____.
A)provide little or no care for their offspring
B)require large ranges
C)easily colonize new habitats
D)adapt easily when their normal way of life is destroyed
19
Which of the following is a density-dependent factor that regulates population size?
A)Competition
B)Drought
C)Accidental fire
D)Earthquake
20
Population size and growth rates can be influenced by intrinsic factors such as _____.
A)dominance hierarchies
B)emigration
C)territoriality
D)All of these
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