BSC 2011 (9) | UPDATED Questions with 100% Verified
Answers
Q1: Red Mangroves are a local species of tree that exhibits a high
amount of parental investment in each seed. The seeds each
have a relatively high chance of surviving to adulthood, and
the adults occupy almost all of the area available to them. This
plant is a good example of...
A: a K-selected species
Q2: In models of logistic population growth,
A: the population growth rate slows as N approaches K.
Q3: A population of ground squirrels has an annual per capita
birth rate of 0.06 and an annual per capita death rate of 0.02.
Calculate an estimate of the overall number change in
population size over one year, for a given starting population
of 1,000 individuals.
A: 40 individuals added
Q4: A tsunami wipes out the entire population of mice living on an
island. This is an example of...
A: a density-independent effect.
Q5: Which of the following would decrease a forest's carrying
capacity of rabbits?
A: The destruction of shrubs under which the rabbits build their nests.
Q6: If most of the individuals of a human population are in their
pre-reproductive years, you would expect the population size
to ____ after 20 years.
A: increase
Q7: A test tube is inoculated with 100 cells of a bacterial strain that
has a generation time of 30 minutes. The carrying capacity of
the test tube for this strain is 6 billion cells. What will the
bacterial population be after 90 minutes of culturing?
A: ~800
Q8: Which scenario exhibits high richness and low diversity?
A: Big Cypress preserve has dozens of species of bromeliads and orchids but the forest is
dominated by Cypress trees.
Answers
Q1: Red Mangroves are a local species of tree that exhibits a high
amount of parental investment in each seed. The seeds each
have a relatively high chance of surviving to adulthood, and
the adults occupy almost all of the area available to them. This
plant is a good example of...
A: a K-selected species
Q2: In models of logistic population growth,
A: the population growth rate slows as N approaches K.
Q3: A population of ground squirrels has an annual per capita
birth rate of 0.06 and an annual per capita death rate of 0.02.
Calculate an estimate of the overall number change in
population size over one year, for a given starting population
of 1,000 individuals.
A: 40 individuals added
Q4: A tsunami wipes out the entire population of mice living on an
island. This is an example of...
A: a density-independent effect.
Q5: Which of the following would decrease a forest's carrying
capacity of rabbits?
A: The destruction of shrubs under which the rabbits build their nests.
Q6: If most of the individuals of a human population are in their
pre-reproductive years, you would expect the population size
to ____ after 20 years.
A: increase
Q7: A test tube is inoculated with 100 cells of a bacterial strain that
has a generation time of 30 minutes. The carrying capacity of
the test tube for this strain is 6 billion cells. What will the
bacterial population be after 90 minutes of culturing?
A: ~800
Q8: Which scenario exhibits high richness and low diversity?
A: Big Cypress preserve has dozens of species of bromeliads and orchids but the forest is
dominated by Cypress trees.
