BIO 1040 TEST QUESTIONS AND ANSWERS
LATEST UPDATE
An r-selected species typically
- Has an advantage in habitats that experience unpredictable disturbances
Thanks to a new conservation program, a population with only 200 individuals at
the beginning of the year is growing exponentially. The population has a per
capita birth rate or 0.5 per year and a death rate of 0.2 per year. What is the
growth rate during the year? What will the population be at the end of the year?
- Growth rate = 60 per year
- Population = 260
Assume that there are five alligators per acre in a swamp in northern florida. This
is a measure of the alligator population's
- Density
Which of the following is most clearly a case of density-dependent population
regulation?
- A dangerous new flue strain that is transmitted among humans by sneezing
Which of the following is a practical of population ecology that will result in
population decline?
- Managing crops by selectively killing agricultural pests
An owl and a hawk both eat mice. Which of the following describes the
relationship between a hawk and an owl?
- Competition
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?
- 10 trees per hectare
An ecologist hypothesizes that predation by a particular owl species is the major
factor controlling the population of a particular rabbit species. The first step in
testing this hypothesis would be to determine
- Whether the owls eat the rabbits
In terms of population dynamics, what is "boom-and-bust" cycling?
- A situation in which a population moves back and forth between rapid growth and
decline
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
- 160
Which of the following statements regarding food webs is true?
- Several species of primary consumers may feed on the same species of producer
Camouflage typically evolves as a result of
- Predation
LATEST UPDATE
An r-selected species typically
- Has an advantage in habitats that experience unpredictable disturbances
Thanks to a new conservation program, a population with only 200 individuals at
the beginning of the year is growing exponentially. The population has a per
capita birth rate or 0.5 per year and a death rate of 0.2 per year. What is the
growth rate during the year? What will the population be at the end of the year?
- Growth rate = 60 per year
- Population = 260
Assume that there are five alligators per acre in a swamp in northern florida. This
is a measure of the alligator population's
- Density
Which of the following is most clearly a case of density-dependent population
regulation?
- A dangerous new flue strain that is transmitted among humans by sneezing
Which of the following is a practical of population ecology that will result in
population decline?
- Managing crops by selectively killing agricultural pests
An owl and a hawk both eat mice. Which of the following describes the
relationship between a hawk and an owl?
- Competition
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?
- 10 trees per hectare
An ecologist hypothesizes that predation by a particular owl species is the major
factor controlling the population of a particular rabbit species. The first step in
testing this hypothesis would be to determine
- Whether the owls eat the rabbits
In terms of population dynamics, what is "boom-and-bust" cycling?
- A situation in which a population moves back and forth between rapid growth and
decline
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
- 160
Which of the following statements regarding food webs is true?
- Several species of primary consumers may feed on the same species of producer
Camouflage typically evolves as a result of
- Predation
