Bio 182 Modules 5 & 6 Questions And
Answers With Verified Solutions 100%
Correct Rated A+ Newly Updated 2025.
Which group is not a population?
A. People
B. Bacteria
C. Giant pandas
D. Bark scorpions
E. All four groups are populations
Answer: E ✔✔
How would you estimate the number of whales in a population?
Answer: Mark and recapture ✔✔
True or False? Sampling quadrants would be the better method for estimating the number
of whales in a population.
Answer: False ✔✔ Sampling quadrants are not ideal for whales because they are mobile.
Whales can leave and return to the sampled area, causing inaccurate counts. Mark and recapture
is a better method.
True or False? Mark and recapture would be the better method for estimating the number
of saguaros (cacti) in a population.
Answer: False ✔✔ Mark and recapture is unnecessary for stationary organisms like saguaros.
Sampling quadrants is better for non-mobile species.
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.
Answer: True ✔✔ Either or both could have caused the population decline.
, True or False? The growing population between 1985 and 1995 could have resulted from a
decrease in emigration or an increase in immigration.
Answer: True ✔✔ Either factor could contribute to population growth.
Why do bluegills nest on the edge of the lake?
Answer: Because the shallow water edge receives more solar radiation, has more zooplankton
(their food), provides more protection for young fish compared to deeper water, contains more
algae for hiding, and offers warmer water to help embryo development and survival. ✔✔
Activity: Write a Figure Legend
Answer: Bluegills prefer certain water temperatures; when given a choice between 27°C and
31°C, they spent the majority of their time at 31°C. ✔✔
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.
Answer: True ✔✔ Larger males can dominate space and displace smaller males.
True or False? Both models assume that no individuals immigrate into the population.
Answer: False ✔✔ These models do not assume zero immigration.
True or False? Competing species are more likely to coexist if their growth rates (r1 and
r2) increase.
Answer: False ✔✔ Growth rates affect population growth speed, not coexistence. Factors like
carrying capacity (K1, K2) and competition coefficients (alpha, beta) influence coexistence.
True or False? Paramecium are most likely to persist at intermediate temperatures?
Answer: False ✔✔ Paramecium are more likely to go extinct at intermediate temperatures due to
high competition; they persist better at low and high temperatures.
Answers With Verified Solutions 100%
Correct Rated A+ Newly Updated 2025.
Which group is not a population?
A. People
B. Bacteria
C. Giant pandas
D. Bark scorpions
E. All four groups are populations
Answer: E ✔✔
How would you estimate the number of whales in a population?
Answer: Mark and recapture ✔✔
True or False? Sampling quadrants would be the better method for estimating the number
of whales in a population.
Answer: False ✔✔ Sampling quadrants are not ideal for whales because they are mobile.
Whales can leave and return to the sampled area, causing inaccurate counts. Mark and recapture
is a better method.
True or False? Mark and recapture would be the better method for estimating the number
of saguaros (cacti) in a population.
Answer: False ✔✔ Mark and recapture is unnecessary for stationary organisms like saguaros.
Sampling quadrants is better for non-mobile species.
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.
Answer: True ✔✔ Either or both could have caused the population decline.
, True or False? The growing population between 1985 and 1995 could have resulted from a
decrease in emigration or an increase in immigration.
Answer: True ✔✔ Either factor could contribute to population growth.
Why do bluegills nest on the edge of the lake?
Answer: Because the shallow water edge receives more solar radiation, has more zooplankton
(their food), provides more protection for young fish compared to deeper water, contains more
algae for hiding, and offers warmer water to help embryo development and survival. ✔✔
Activity: Write a Figure Legend
Answer: Bluegills prefer certain water temperatures; when given a choice between 27°C and
31°C, they spent the majority of their time at 31°C. ✔✔
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.
Answer: True ✔✔ Larger males can dominate space and displace smaller males.
True or False? Both models assume that no individuals immigrate into the population.
Answer: False ✔✔ These models do not assume zero immigration.
True or False? Competing species are more likely to coexist if their growth rates (r1 and
r2) increase.
Answer: False ✔✔ Growth rates affect population growth speed, not coexistence. Factors like
carrying capacity (K1, K2) and competition coefficients (alpha, beta) influence coexistence.
True or False? Paramecium are most likely to persist at intermediate temperatures?
Answer: False ✔✔ Paramecium are more likely to go extinct at intermediate temperatures due to
high competition; they persist better at low and high temperatures.
