BIO 321 EXAM 2 ASU 2026
LATEST UPDATE QUESTIONS AND
CORRECT VERIFIED ANSWERS
ALREADY GRADED A+
Combining survivorship and fecundity schedules - ans-Gives the
average number of female offspring produced per female,
discounted by the probability that a female survives to that age.
If the proportion of females in each age class is stable over time: - ans-λ
≈ R0 / G
r ≈ ln (R0 / G)
R0 > 1.0 - ans-means population is growing (it is more than
replacing itself)
Geometric Growth - ans-Continuous growth in an unlimited
environment in populations with discrete generations (no
overlap) that increase by a constant ratio of one generation size
to the next.
Geometric population growth - ans-Population growth in which
generations do not overlap and in which successive generations
differ in size by a constant ratio.
exponential population growth - ans-Growth of a population in an
ideal, unlimited environment; J shaped curve
logistic population growth. - ans-As resources are depleted,
population growth rate slows and eventually stops; S shaped
curve
, Carrying capacity (K) - ans-the number of individuals of a population
the environment can support.
Logistic Model Assumptions - ans-1)Closed population
2)Continuous population growth (no time lags)
3)Genetic structure is constant through time
4)No age or size structure in the population
5)Linear density dependent birth and death rates
6)Constant K = carrying capacity
rmaxN - ans-Potential increase of population per unit time
Delay differential equation - ans-Add a time lag (T) to continuous
logistic model
Biotic Potential - ans-Maximum growth rate of a population under
ideal environmental conditions.
Limiting Factor - ans-Environmental factor limiting the growth of
populations (e.g., lack of food, space, water).
Dr. Paul Ehrlich - ans-Wrote "The Population Bomb". Predicted that
mass starvation would occur during the 1970s and 1980s because
population growth would rapidly outgrow food production.
intraspecific competition - ans-Competition with members of own
species.
interspecific competition - ans-Competition between individuals of
two species.
LATEST UPDATE QUESTIONS AND
CORRECT VERIFIED ANSWERS
ALREADY GRADED A+
Combining survivorship and fecundity schedules - ans-Gives the
average number of female offspring produced per female,
discounted by the probability that a female survives to that age.
If the proportion of females in each age class is stable over time: - ans-λ
≈ R0 / G
r ≈ ln (R0 / G)
R0 > 1.0 - ans-means population is growing (it is more than
replacing itself)
Geometric Growth - ans-Continuous growth in an unlimited
environment in populations with discrete generations (no
overlap) that increase by a constant ratio of one generation size
to the next.
Geometric population growth - ans-Population growth in which
generations do not overlap and in which successive generations
differ in size by a constant ratio.
exponential population growth - ans-Growth of a population in an
ideal, unlimited environment; J shaped curve
logistic population growth. - ans-As resources are depleted,
population growth rate slows and eventually stops; S shaped
curve
, Carrying capacity (K) - ans-the number of individuals of a population
the environment can support.
Logistic Model Assumptions - ans-1)Closed population
2)Continuous population growth (no time lags)
3)Genetic structure is constant through time
4)No age or size structure in the population
5)Linear density dependent birth and death rates
6)Constant K = carrying capacity
rmaxN - ans-Potential increase of population per unit time
Delay differential equation - ans-Add a time lag (T) to continuous
logistic model
Biotic Potential - ans-Maximum growth rate of a population under
ideal environmental conditions.
Limiting Factor - ans-Environmental factor limiting the growth of
populations (e.g., lack of food, space, water).
Dr. Paul Ehrlich - ans-Wrote "The Population Bomb". Predicted that
mass starvation would occur during the 1970s and 1980s because
population growth would rapidly outgrow food production.
intraspecific competition - ans-Competition with members of own
species.
interspecific competition - ans-Competition between individuals of
two species.
