EXAM 3 ASU BIO 182 QUESTIONS
WITH CORRECT ANSWERS
Which group is not a population? - Correct Answers -all four groups are populations
How would you estimate the number of whales in a population? - Correct Answers -
mark and recapture
What is a population? - Correct Answers -a group of individuals of the same species
living in the same area at the same time
True or False? Sampling quadrats would be the better method for estimating the
number of whales in a population. - Correct Answers -false
True or False? Mark and recapture would be the better method for estimating the
number of saguaros in a population. - Correct Answers -true
True or False? The shrinking population between 1965 and 1970 could have resulted
from a decrease in the birth rate or an increase in the death rate. - Correct Answers -
true
True or False? The growing population between 1985 and 1995 could have resulted
from a decrease in emigration or an increase in immigration. - Correct Answers -true
The human population has grown ____________________ - Correct Answers -
exponentially
The growth of a population depends on __________________ - Correct Answers -the
birth rate minus the death rate.
A population stops growing when it _____________________ - Correct Answers -
reaches its carrying capacity.
True or False? The carrying capacity of a population depends on the resources
available in the environment. - Correct Answers -true
Why do bluegills nest on the edge of the lake? - Correct Answers -The habitat in the
shallow water might receive more solar radiation, holds more zooplankton (which is
what they eat), more protective over young than it in deeper water where larger fish
, reside, more algae for the fish to hide in, warmer water for embryos to develop quickly
and enhance survival/fitness.
Activity: Write a Figure Legend - Correct Answers -Bluegills prefer certain water temp;
when given a choice between 27 degrees celsius and 31 degrees celsius, bluegills
spent a majority of their time at 31 degrees celsius.
True or False? If males compete for space, a large male will likely force a small male to
spend less time on the side of the tank with the optimal temperature. - Correct Answers
-true
True or False? Both models assume that no individuals immigrate into the population. -
Correct Answers -false
t/f: When possible, a bluegill prefers to have a body temperature around 31°C. - Correct
Answers -true
T/F: When competing with an adult, a juvenile bluegill will always have a lower body
temperature than its preferred temperature. - Correct Answers -False (If the
environment hotter than preferred, on average, large bluegill will force small bluegills to
remain in parts of water that are hotter than preferred)
T/F: All else being equal, the carrying capacity of a lake would likely increase as more
parts of the lake warm to 31°C. - Correct Answers -true
T/F: All else being equal, a juvenile bluegill will likely grow slower in a lake with many
adult bluegills than in a lake with few adults - Correct Answers -true
T/F: The growth of a bluegill population would be better described by a model without
density dependence than by a model with density dependence. - Correct Answers -
false, Because access to suitable temperatures is limited, the growth of the population
will have a carrying capacity, which requires density dependence
T/F: The number of whales was more likely estimated by sampling than by mark-
recapture. - Correct Answers -false
T/F: The shrinking population between 1965 and 1970 could have resulted from a
decrease in the birth rate or an increase in the death rate. - Correct Answers -true
T/F: The growing population between 1985 and 1995 could have resulted from a
decrease in emigration or an increase in immigration. - Correct Answers -true
T/F: Between 2005 and 2008, the sum of the birth and immigration rates roughly
equaled the sum of the death and emigration rates. - Correct Answers -true
WITH CORRECT ANSWERS
Which group is not a population? - Correct Answers -all four groups are populations
How would you estimate the number of whales in a population? - Correct Answers -
mark and recapture
What is a population? - Correct Answers -a group of individuals of the same species
living in the same area at the same time
True or False? Sampling quadrats would be the better method for estimating the
number of whales in a population. - Correct Answers -false
True or False? Mark and recapture would be the better method for estimating the
number of saguaros in a population. - Correct Answers -true
True or False? The shrinking population between 1965 and 1970 could have resulted
from a decrease in the birth rate or an increase in the death rate. - Correct Answers -
true
True or False? The growing population between 1985 and 1995 could have resulted
from a decrease in emigration or an increase in immigration. - Correct Answers -true
The human population has grown ____________________ - Correct Answers -
exponentially
The growth of a population depends on __________________ - Correct Answers -the
birth rate minus the death rate.
A population stops growing when it _____________________ - Correct Answers -
reaches its carrying capacity.
True or False? The carrying capacity of a population depends on the resources
available in the environment. - Correct Answers -true
Why do bluegills nest on the edge of the lake? - Correct Answers -The habitat in the
shallow water might receive more solar radiation, holds more zooplankton (which is
what they eat), more protective over young than it in deeper water where larger fish
, reside, more algae for the fish to hide in, warmer water for embryos to develop quickly
and enhance survival/fitness.
Activity: Write a Figure Legend - Correct Answers -Bluegills prefer certain water temp;
when given a choice between 27 degrees celsius and 31 degrees celsius, bluegills
spent a majority of their time at 31 degrees celsius.
True or False? If males compete for space, a large male will likely force a small male to
spend less time on the side of the tank with the optimal temperature. - Correct Answers
-true
True or False? Both models assume that no individuals immigrate into the population. -
Correct Answers -false
t/f: When possible, a bluegill prefers to have a body temperature around 31°C. - Correct
Answers -true
T/F: When competing with an adult, a juvenile bluegill will always have a lower body
temperature than its preferred temperature. - Correct Answers -False (If the
environment hotter than preferred, on average, large bluegill will force small bluegills to
remain in parts of water that are hotter than preferred)
T/F: All else being equal, the carrying capacity of a lake would likely increase as more
parts of the lake warm to 31°C. - Correct Answers -true
T/F: All else being equal, a juvenile bluegill will likely grow slower in a lake with many
adult bluegills than in a lake with few adults - Correct Answers -true
T/F: The growth of a bluegill population would be better described by a model without
density dependence than by a model with density dependence. - Correct Answers -
false, Because access to suitable temperatures is limited, the growth of the population
will have a carrying capacity, which requires density dependence
T/F: The number of whales was more likely estimated by sampling than by mark-
recapture. - Correct Answers -false
T/F: The shrinking population between 1965 and 1970 could have resulted from a
decrease in the birth rate or an increase in the death rate. - Correct Answers -true
T/F: The growing population between 1985 and 1995 could have resulted from a
decrease in emigration or an increase in immigration. - Correct Answers -true
T/F: Between 2005 and 2008, the sum of the birth and immigration rates roughly
equaled the sum of the death and emigration rates. - Correct Answers -true
