BIO 1040 TEST QUESTIONS AND ANSWERS
LATEST UPDATE
1. Which of the following is an example of a population?
A) the various plants found in prairies in the western United States
B) all students attending colleges and universities in your state
C) all of the students in your classroom
D) all of the microorganisms on your skin
C) all of the students in your classroom
2. Assume that there are five alligators per acre in a swamp in northern Florida.
This is a measure of the alligator population's
A) intrinsic rate of increase
B) range
C) density
D) dispersion
C) density
3. The pattern of distribution for a certain species of kelp is clumped. The pattern
of distribution for a population of snails that live on the kelp would be
A) random
B) clumped
C) uniform
D) homogeneous
B) clumped
4. You drive through Iowa in the spring and notice that along a stretch of several
kilometers, every third fence post has a male redwing blackbird perched on it
defending its nesting territory. This is an example of
A) random dispersion
B) artificial dispersion
C) uniform dispersion
D) clumped dispersion
C) uniform dispersion
5. The density of Douglas firs in an old-growth forest is estimated by counting the
Douglas firs in four sample plots of 1 hectare each. The number of fir trees in the
plots is 10, 12, 7, and 11, respectively. What is the estimated density of firs in the
forest?
A) 10 trees per hectare
B) 25 trees per hectare
C) 5 trees per hectare
D) 20 trees per hectare
A) 10 trees per hectare
6. A survivorship curve is...
A) model for population growth that incorporates the concept of carrying capacity
B) graph that shows the effect of predation on a prey population
, C) graph that plots an individual's likelihood of being alive as a function of age
D) graph that plots an individual's likelihood of reproducing as a function of age
C) graph that plots an individual's likelihood of being alive as a function of age.
7. A Type I survivorship curve is associated with which of the following life
history traits?
A) a short life span for most individuals
B) large numbers of offspring being produced
C) parents providing extended care for their young
D) infant mortality being much greater than adult mortality
C) parents providing extended care for their young
8. The maximum number of individuals a habitat can support is called its
A) community size
B) reproductive potential
C) carrying capacity
D) density-dependent factor
C) carrying capacity
9. A population of fungi in a yard produces 10 mushrooms in year 1, 20 in year 2,
and 40 in year 3. If this trend continues, by year 5 there will be ________
mushrooms.
A) 160
B) 40
C) 320
D) 80
A) 160
10. A newly mated queen ant establishes an ant nest in an unoccupied patch of
suitable habitat. The population of the nest grows quickly at first, then levels off
at carrying capacity. Which of the following models best describes its population
growth?
A) exponential
B) logistic
C) linear
D) logarithmic
B) logistic
11. If an ecosystem has a carrying capacity of 1,000 individuals for a given
species, and 2,000 individuals of that species are present, we can predict that the
population
A) size will remain at equilibrium
B) will show a clumped dispersion pattern
C) size will slowly increase
D) size will decrease
D) size will decrease
12. The death by bubonic plague of about one-third of Europe's population during
the 14th century is a good example of
A) abiotic factors limiting population size
B) a density-independent effect
LATEST UPDATE
1. Which of the following is an example of a population?
A) the various plants found in prairies in the western United States
B) all students attending colleges and universities in your state
C) all of the students in your classroom
D) all of the microorganisms on your skin
C) all of the students in your classroom
2. Assume that there are five alligators per acre in a swamp in northern Florida.
This is a measure of the alligator population's
A) intrinsic rate of increase
B) range
C) density
D) dispersion
C) density
3. The pattern of distribution for a certain species of kelp is clumped. The pattern
of distribution for a population of snails that live on the kelp would be
A) random
B) clumped
C) uniform
D) homogeneous
B) clumped
4. You drive through Iowa in the spring and notice that along a stretch of several
kilometers, every third fence post has a male redwing blackbird perched on it
defending its nesting territory. This is an example of
A) random dispersion
B) artificial dispersion
C) uniform dispersion
D) clumped dispersion
C) uniform dispersion
5. The density of Douglas firs in an old-growth forest is estimated by counting the
Douglas firs in four sample plots of 1 hectare each. The number of fir trees in the
plots is 10, 12, 7, and 11, respectively. What is the estimated density of firs in the
forest?
A) 10 trees per hectare
B) 25 trees per hectare
C) 5 trees per hectare
D) 20 trees per hectare
A) 10 trees per hectare
6. A survivorship curve is...
A) model for population growth that incorporates the concept of carrying capacity
B) graph that shows the effect of predation on a prey population
, C) graph that plots an individual's likelihood of being alive as a function of age
D) graph that plots an individual's likelihood of reproducing as a function of age
C) graph that plots an individual's likelihood of being alive as a function of age.
7. A Type I survivorship curve is associated with which of the following life
history traits?
A) a short life span for most individuals
B) large numbers of offspring being produced
C) parents providing extended care for their young
D) infant mortality being much greater than adult mortality
C) parents providing extended care for their young
8. The maximum number of individuals a habitat can support is called its
A) community size
B) reproductive potential
C) carrying capacity
D) density-dependent factor
C) carrying capacity
9. A population of fungi in a yard produces 10 mushrooms in year 1, 20 in year 2,
and 40 in year 3. If this trend continues, by year 5 there will be ________
mushrooms.
A) 160
B) 40
C) 320
D) 80
A) 160
10. A newly mated queen ant establishes an ant nest in an unoccupied patch of
suitable habitat. The population of the nest grows quickly at first, then levels off
at carrying capacity. Which of the following models best describes its population
growth?
A) exponential
B) logistic
C) linear
D) logarithmic
B) logistic
11. If an ecosystem has a carrying capacity of 1,000 individuals for a given
species, and 2,000 individuals of that species are present, we can predict that the
population
A) size will remain at equilibrium
B) will show a clumped dispersion pattern
C) size will slowly increase
D) size will decrease
D) size will decrease
12. The death by bubonic plague of about one-third of Europe's population during
the 14th century is a good example of
A) abiotic factors limiting population size
B) a density-independent effect
