QUESTION-4
ANSWER-
Paige cultured 100,000 unicellular parameciums.
Ten days later, the population grew to 500,000 paramecium cells.
Now we have to calculate the intrinsic growth rate (r)-
We know that,
Nt = N0 ert
where,
Nt= final population size at the time t
N0= initial population size
r= Intrinsic growth rate
t= time
Nt = N0 ert
Nt N0 =
ert
Let's take the natural log of both the sides to get rid of e-
ln(Nt N0) = ln
ert
lnNt - ln N0= rt
r= lnNt -
ln N0 t
Provided information-
Nt= 500,000
N0 = 100,000
t= 10 days
Now put these values in the above equation-
r= ln (500,000) - ln (100,000) 10
r= 13.12- 11.51 10
r= 1.1310
r= 0.113
CONCLUSION- The intrinsic growth rate is 0.113.
GOOD LUCK.
4. Paige cultured 100,000 paramecium (unicellular). Ten days later, the population grew to 500,000 paramecium cells....
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