Multiple Choice
Which population growth model describes a situation where population growth slows or stops after a period of exponential increase?
25
views
50. Population Ecology
Introduction to Population Growth Models
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
An island has a population of 10,000 rabbits at the beginning of the year. During the year, there were 400 births and 150 deaths. Calculate the population growth rate and the per capita population growth rate.
A
ΔN/Δt = 250 rabbits/year; r = 0.25 rabbits/year/rabbit
B
ΔN/Δt = 250 rabbits/year; r = 2.5 rabbits/year/rabbit
C
ΔN/Δt = 250 rabbits/year; r = 0.025 rabbits/year/rabbit
D
ΔN/Δt = 550 rabbits/year; r = 0.0025 rabbits/year/rabbit
Verified step by step guidance1
Identify the initial population size (N) of rabbits, which is 10,000.
Calculate the change in population size (ΔN) by subtracting the number of deaths from the number of births: ΔN = 400 births - 150 deaths.
Determine the time interval (Δt) over which the population change occurs, which is 1 year.
Calculate the population growth rate (ΔN/Δt) by dividing the change in population size (ΔN) by the time interval (Δt).
Calculate the per capita population growth rate (r) by dividing the population growth rate (ΔN/Δt) by the initial population size (N).
1:09mWatch next
Master Introduction to Population Growth Models with a bite sized video explanation from Jason
Start learningRelated Videos
Related Practice
Introduction to Population Growth Models practice set
Problem sets built by lead tutorsExpert video explanations