ECCB 403 Final Exam Guide/ ACTUAL EXAM/ MOSTLY TESTED
QUESTIONS AND CORRECT DETAILED ANSWERS| 100%
CORRECT SOLUTIONS/GRADE A+
Terms in this set (69) Choices
Which of the following is the correct definition of a
population? Choose the best answer.
(A) A group of individuals of one species that live in a
particular geographic area. (C) Both (A) and (B) are correct.
(B) A collection of inter-breeding organisms of a
particular species.
(C) Both (A) and (B) are correct.
Which of the following are the vital rates? Choose the
best answer.
Both (A) and (B) are vital rates.
(A) Per-capita survival rate
(B) Per-capita mortality rate
,(C) Population density
All of the above
Both (A) and (B) are vital rates.
Suppose a population of frogs consisted of 100
individuals on March 1, 2021 and 60 individuals on
April 1, 2021. We know there was no birth (because it
is not a reproductive season). We also know there was
no immigration and emigration because the population
is isolated. Which of the following is the best answer?
(C) The monthly survival rate was 0.6.
(A) The monthly mortality rate was 0.6.
(B) The monthly mortality rate was 0.06.
(C) The monthly survival rate was 0.6.
(D) The monthly survival rate was 0.06.
(E)None of the above is correct because the population
might have experienced something unexpected.
The population density changes exponentially when
(assuming no immigration and no emigration)
(A) per-capita birth rate and per-capita death rate
remain constant over time (A) per-capita birth rate and per-capita
(B) the number of births and number of deaths remain death rate remain constant over time
constant over time
(C) per-capita death rate and per-capita birth rate
change exponentially with time.
, (D) per-capita death rate and per-capita survival rate
remain constant over time
According to the "fundamental law of population
ecology", the four basic population processes affecting
population abundance are
(A) reproductive value, stable stage distribution,
(C) birth, death, immigration, and
population growth rate, and carrying capacity
emigration
(B) physiology, behavior, disease, and predation
(C) birth, death, immigration, and emigration
(D) density dependence, environment, species
interaction, stochasticity
When the natural log of population density (observed
data) plotted against time is a straight line with a
positive slope, the population density has been growing
True
exponentially with time.
True
False
Which of the following shows geometric growth ( Nt is
a variable for population density at time t, and others
are constants)? (B) Nt+1= lambda X Nt
(A) Nt+1= lambda +Nt
(B) Nt+1= lambda X Nt
QUESTIONS AND CORRECT DETAILED ANSWERS| 100%
CORRECT SOLUTIONS/GRADE A+
Terms in this set (69) Choices
Which of the following is the correct definition of a
population? Choose the best answer.
(A) A group of individuals of one species that live in a
particular geographic area. (C) Both (A) and (B) are correct.
(B) A collection of inter-breeding organisms of a
particular species.
(C) Both (A) and (B) are correct.
Which of the following are the vital rates? Choose the
best answer.
Both (A) and (B) are vital rates.
(A) Per-capita survival rate
(B) Per-capita mortality rate
,(C) Population density
All of the above
Both (A) and (B) are vital rates.
Suppose a population of frogs consisted of 100
individuals on March 1, 2021 and 60 individuals on
April 1, 2021. We know there was no birth (because it
is not a reproductive season). We also know there was
no immigration and emigration because the population
is isolated. Which of the following is the best answer?
(C) The monthly survival rate was 0.6.
(A) The monthly mortality rate was 0.6.
(B) The monthly mortality rate was 0.06.
(C) The monthly survival rate was 0.6.
(D) The monthly survival rate was 0.06.
(E)None of the above is correct because the population
might have experienced something unexpected.
The population density changes exponentially when
(assuming no immigration and no emigration)
(A) per-capita birth rate and per-capita death rate
remain constant over time (A) per-capita birth rate and per-capita
(B) the number of births and number of deaths remain death rate remain constant over time
constant over time
(C) per-capita death rate and per-capita birth rate
change exponentially with time.
, (D) per-capita death rate and per-capita survival rate
remain constant over time
According to the "fundamental law of population
ecology", the four basic population processes affecting
population abundance are
(A) reproductive value, stable stage distribution,
(C) birth, death, immigration, and
population growth rate, and carrying capacity
emigration
(B) physiology, behavior, disease, and predation
(C) birth, death, immigration, and emigration
(D) density dependence, environment, species
interaction, stochasticity
When the natural log of population density (observed
data) plotted against time is a straight line with a
positive slope, the population density has been growing
True
exponentially with time.
True
False
Which of the following shows geometric growth ( Nt is
a variable for population density at time t, and others
are constants)? (B) Nt+1= lambda X Nt
(A) Nt+1= lambda +Nt
(B) Nt+1= lambda X Nt
