Respuesta :
Answer:
C) 128
Explanation:
In binary fission each bacterial cell will divide into two parts.
1. Since the bacteria divides divides after every 20 min , We have to find the number of division in two hours two hour(2x60=120 min) which will be;
120÷20=6
It will undergo 6 divisions.
2. To calculate the number of bacteria at the end of 2 hours
Bacteria in the beginning x 2∧ Number of division
1× 2∧6= 128 Bacteria
The size of a population of bacteria that reproduce by binary fission every 20 minutes starting from a single individual and lasting for 2 hours would be 64.
There are 120 minutes in a 2 hour period.
Starting at 0 minutes with 1 individual
After 20 minutes, there will be 2 individuals
After 40 minutes, there will be 4 individuals
after 60 minutes, 8 individuals
After 80 minutes, 16 individuals
After 100 minutes, 32 individuals
After 120 minutes. 64 individuals
More on bacterial division can be found here: https://brainly.com/question/10046744