Question 1

Why can't a female lizard have both high fecundity and high survival?

Accepted Answer

A)  Only in rare cases do lizards have both high fecundity and high survival. 
B)  The more energy the female devotes to offspring, the less that can be devoted to her survival. 
C)  Female lizards are able to produce only one set of offspring. 
D)  Competition for resources prevents this. 
A)  Only in rare cases do lizards have both high fecundity and high survival. 
B)  The more energy the female devotes to offspring, the less that can be devoted to her survival. 
C)  Female lizards are able to produce only one set of offspring. 
D)  Competition for resources prevents this.

Question 2

An ecologist recorded 12 white- tailed deer, Odocoileus virginianus, per square kilometre in one woodlot and 20 per square kilometre in another woodlot. What was the ecologist comparing?

Accepted Answer

A)  dispersion 
B)  range 
C)  cohorts 
D)  density 
E)  carrying capacity 
A)  dispersion 
B)  range 
C)  cohorts 
D)  density 
E)  carrying capacity

Question 3

Figure 51.12
-What conclusion can you draw from the figure above?

Accepted Answer

A)  Lynx and hare populations are independent of each other. 
B)  Lynx control hare population size. 
C)  Hares control lynx population size. 
D)  The relationship between the populations cannot be determined from this graph. 
A)  Lynx and hare populations are independent of each other. 
B)  Lynx control hare population size. 
C)  Hares control lynx population size. 
D)  The relationship between the populations cannot be determined from this graph.

Question 4

Which statements about K are correct?
I. K varies among populations.
II. K varies in space.
III. K varies in time.
IV. K is constant for any given species.

Accepted Answer

A)  only I and III 
B)  only I, II, and IV 
C)  only I, II, and III 
D)  only II, III, and IV 
E)  only II and IV 
A)  only I and III 
B)  only I, II, and IV 
C)  only I, II, and III 
D)  only II, III, and IV 
E)  only II and IV

Question 5

As N approaches K for a certain population, which of the following is predicted by the logistic equation?

Accepted Answer

A)  The population will show an Allee effect. 
B)  The population will increase exponentially. 
C)  The growth rate will not change. 
D)  The carrying capacity of the environment will increase. 
E)  The growth rate will approach zero. 
A)  The population will show an Allee effect. 
B)  The population will increase exponentially. 
C)  The growth rate will not change. 
D)  The carrying capacity of the environment will increase. 
E)  The growth rate will approach zero.

Question 6

When the birth rate is equal to each woman producing exactly enough offspring to replace herself and her offspring's father, and the birth rate is sustained for a generation, then which of the following is correct?

Accepted Answer

A)  0  1 
E)  Population size is at carrying capacity. 
A)  0  1 
E)  Population size is at carrying capacity.

Question 7

If 60 snow geese were alive in 1926 and 856 existed in 2001, what is r?

Accepted Answer

A)  0.094 
B)  0.035 
C)  0.070 
A)  0.094 
B)  0.035 
C)  0.070

Question 8

Which of the following could be a density- independent factor limiting human population growth?

Accepted Answer

A)  earthquakes 
B)  famines 
C)  Ebola infections 
D)  epidemic of measles 
A)  earthquakes 
B)  famines 
C)  Ebola infections 
D)  epidemic of measles

Question 9

(a)

(b)

(c)
   Figure 51.8
-Park Grass study in Rothamstead, UK is the longest- running biological experiment. A series of plots ~1/3 ha each) with uniform soil and vegetation have been treated either with fertilizer, lime, or left as controls. Annually, researchers record plant species present. Based on the graphs above, which species increased and maintained high population size?

Accepted Answer

A)  Trifolium pratense 
B)  Tragopogon pratensis 
C)  Conopodium majus 
A)  Trifolium pratense 
B)  Tragopogon pratensis 
C)  Conopodium majus

Exam 51: Population Ecology

Why can't a female lizard have both high fecundity and high survival?

An ecologist recorded 12 white- tailed deer, Odocoileus virginianus, per square kilometre in one woodlot and 20 per square kilometre in another woodlot. What was the ecologist comparing?

Figure 51.12 -What conclusion can you draw from the figure above?

Which statements about K are correct? I. K varies among populations. II. K varies in space. III. K varies in time. IV. K is constant for any given species.

As N approaches K for a certain population, which of the following is predicted by the logistic equation?

When the birth rate is equal to each woman producing exactly enough offspring to replace herself and her offspring's father, and the birth rate is sustained for a generation, then which of the following is correct?

If 60 snow geese were alive in 1926 and 856 existed in 2001, what is r?

Which of the following could be a density- independent factor limiting human population growth?

Biology and the Tree of Life

Water and Carbon: the Chemical Basis of Life

Protein Structure and Function

Nucleic Acids and the Rna World

An Introduction to Carbohydrates

Lipids, Membranes, and the First Cells

Inside the Cell

Energy and Enzymes

Cellular Respiration and Fermentation

Photosynthesis

Cellcell Interactions

The Cell Cycle

Meiosis

Mendel and the Gene

Dna and the Gene: Synthesis and Repair

How Genes Work

Transcription, Rna Processing, and Translation

Control of Gene Expression in Bacteria

Control of Gene Expression in Eukaryotes

The Molecular Revolution: Biotechnology and Beyond

Gene Structure and Development

Evolution by Natural Selection

Evolutionary Processes

Speciation

Phylogenies and the History of Life

Bacteria and Archaea

Protists

Green Algae and Land Plants

Fungi

An Introduction to Animals

Protostome Animals

Deuterostome Animals

Viruses

Plant Form and Function

Water and Sugar Transport in Plants

Plant Nutrition

Plant Sensory Systems, Signals, and Responses

Plant Reproduction and Development

Animal Form and Function

Water and Electrolyte Balance in Animals

Animal Nutrition

Gas Exchange and Circulation

Animal Nervous Systems

Animal Sensory Systems

Animal Movement

Chemical Signals in Animals

Animal Reproduction and Development

The Immune System in Animals

An Introduction to Ecology

Behavioural Ecology

Community Ecology

Ecosystems and Global Ecology

Biodiversity and Conservation Biology

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