ECCB 403 Final Exam- All quiz and exam questions || SOLVED
True or False: According to the author of your textbook (Krebs), descriptive ecology is the
foundation of all ecological sciences. - CORRECT ANSWER True
What biological discipline(s) are closely related to ecology?
Physiology
Sociology
Evolution
A and C
All of the above - CORRECT ANSWER A and C
True or False: Scientists use the scientific method to prove that their hypotheses are correct. -
CORRECT ANSWER False
Where can a scientific hypothesis come from?
Previous research
Intuition
Inspiration
A and B
All of the above - CORRECT ANSWER All of the above
Recalling our discussion in class about the film "Powers of Ten", if we wanted to stop the film
when we were looking at the most accurate representation of reality, which of the following
images would we be looking at?
,The Planet Earth
The people on the beach
It is an impossible choice to make
It depends on what we are interested in - CORRECT ANSWER It depends on what we are
interested in
True or False: The scientific method involves both inductive and deductive reasoning. - CORRECT
ANSWER True
True or False: Three types of dispersal are random, clumped, and uniform. - CORRECT ANSWER
False
Which of the following are among the basic characteristics that ecologists use to describe an
animal population?
Density
Pattern of dispersion
Age and sex ratios
Natality and mortality rates
All of the above - CORRECT ANSWER All of the above
Based on the figure, which of the following statements is correct?
The Type 1 curve represents an indefinite lifespan
The Type 2 curve represents constant per capita mortality across all ages
The Type 3 curve represents high survival to old age
All three curves represent the age-specific mean number of offspring produced
,None of the above - CORRECT ANSWER The Type 2 curve represents constant per capita
mortality across all ages
Based on the following life table, which of the following statements is correct?
x. nx lx dx qx
0 1000
1 100
2 50
3 25
The value of qo is 0.1
The value of qo is 0.9
There are insufficient data to calculate qo
The value of qo is 1 - CORRECT ANSWER The value of qo is 0.9
Probable causes of the clumped (or aggregated) patterns of dispersion exhibited by many plants
and animals include which of the following?
Environmental gradients
Preferred distance to closest individual of the same species
Habitat heterogeneity
All of the above
None of the above - CORRECT ANSWER All of the above
True or False: Emigration is the movement of individuals into an area occupied by the
population. - CORRECT ANSWER False
, Under what conditions will a static life table and a dynamic life table be identical?
They never will be identical
They always will be identical
When population size is constant and age-specific per capita birth and death rates do not
change
When the population is at carrying capacity
When the population is at the inflection point on the logistic growth curve - CORRECT ANSWER
When population size is constant and age-specific per capita birth and death rates do not
change
Based on the following life table, which of the following statements is correct?
x. nx lx dx qx
0 1000
1 100
2 50
3 25
The value of d0 is 900
The value of d0 is 0.9
There are insufficient data to calculate d0
The value of d0 is 1 - CORRECT ANSWER The value of d0 is 900
True or False: The per capita natality rate of a population can be expressed properly in terms of
the number of individuals born per year. - CORRECT ANSWER False
True or False: According to the author of your textbook (Krebs), descriptive ecology is the
foundation of all ecological sciences. - CORRECT ANSWER True
What biological discipline(s) are closely related to ecology?
Physiology
Sociology
Evolution
A and C
All of the above - CORRECT ANSWER A and C
True or False: Scientists use the scientific method to prove that their hypotheses are correct. -
CORRECT ANSWER False
Where can a scientific hypothesis come from?
Previous research
Intuition
Inspiration
A and B
All of the above - CORRECT ANSWER All of the above
Recalling our discussion in class about the film "Powers of Ten", if we wanted to stop the film
when we were looking at the most accurate representation of reality, which of the following
images would we be looking at?
,The Planet Earth
The people on the beach
It is an impossible choice to make
It depends on what we are interested in - CORRECT ANSWER It depends on what we are
interested in
True or False: The scientific method involves both inductive and deductive reasoning. - CORRECT
ANSWER True
True or False: Three types of dispersal are random, clumped, and uniform. - CORRECT ANSWER
False
Which of the following are among the basic characteristics that ecologists use to describe an
animal population?
Density
Pattern of dispersion
Age and sex ratios
Natality and mortality rates
All of the above - CORRECT ANSWER All of the above
Based on the figure, which of the following statements is correct?
The Type 1 curve represents an indefinite lifespan
The Type 2 curve represents constant per capita mortality across all ages
The Type 3 curve represents high survival to old age
All three curves represent the age-specific mean number of offspring produced
,None of the above - CORRECT ANSWER The Type 2 curve represents constant per capita
mortality across all ages
Based on the following life table, which of the following statements is correct?
x. nx lx dx qx
0 1000
1 100
2 50
3 25
The value of qo is 0.1
The value of qo is 0.9
There are insufficient data to calculate qo
The value of qo is 1 - CORRECT ANSWER The value of qo is 0.9
Probable causes of the clumped (or aggregated) patterns of dispersion exhibited by many plants
and animals include which of the following?
Environmental gradients
Preferred distance to closest individual of the same species
Habitat heterogeneity
All of the above
None of the above - CORRECT ANSWER All of the above
True or False: Emigration is the movement of individuals into an area occupied by the
population. - CORRECT ANSWER False
, Under what conditions will a static life table and a dynamic life table be identical?
They never will be identical
They always will be identical
When population size is constant and age-specific per capita birth and death rates do not
change
When the population is at carrying capacity
When the population is at the inflection point on the logistic growth curve - CORRECT ANSWER
When population size is constant and age-specific per capita birth and death rates do not
change
Based on the following life table, which of the following statements is correct?
x. nx lx dx qx
0 1000
1 100
2 50
3 25
The value of d0 is 900
The value of d0 is 0.9
There are insufficient data to calculate d0
The value of d0 is 1 - CORRECT ANSWER The value of d0 is 900
True or False: The per capita natality rate of a population can be expressed properly in terms of
the number of individuals born per year. - CORRECT ANSWER False
