Note: Assume that each parent dies after producing one litter of offspring.
Each bacterium produces two offspring. What equation
describes their population growth?
Nt = 2n
Nt = N0n2
Nt = N02n
N0 = Nt2n
If ten bacterial cells each generate offspring
by 5 minutes, how many bacteria will there be in 30 minutes?
640
64
106
6.4 x 106
In the population growth equation, what do N0
and Nt stand for?
The initial number of organisms and the final number of
organisms, respectively.
The initial number of organisms and the number after t generations,
respectively.
The initial number of organisms and the number or organisms
at time t, respectively.
The final number of organisms and the initial number of
organisms, respectively.
If two different organisms have the same doubling
time, but produce different numbers of offspring in each generation, what
entity in the equation
Nt = N0 Qn
will be different for the two organisms?
Nt
N0
Q
n
Cyrano Jones is selling a new exotic creature,
"terribles." Terribles reproduce every 6 hours in litters of
10. If you start with 3 terribles, which equation would you use to calculate
the number of terribles alive in 10 days?
N10 days = 1 x 240
N10 days = 3 x 1040
N10 days = 3 x 640
N10 days = 3 x 1010
If 20 terribles produce 10 offspring for 3 generations,
how many terribles will there be?
2 x 103
2 x 104
20 x 104
2 x 105
Assume tribbles need
12 hours to make a litter of 10, and that they die after one litter.
Starting with one tribble, how many tribbles will there be in 10 days?