Question

I am single-celled, prokaryotic organism that lives in the large intestine of mammals like humans. I reproduce asexually by binary fission and can reproduce this way very fast.

A) E. coli
B) S. aureus
C) P. aeruginosa
D) Streptococcus

Answer 1

E. coli is a prokaryotic organism that resides in the mammalian large intestine and reproduces asexually through binary fission, allowing it to multiply rapidly.

Step-by-step explanation:

The correct answer to the question is A) E. coli. Escherichia coli, commonly known as E. coli, is a prokaryotic organism that resides in the large intestine of humans and other mammals. It is a single-celled bacterium that reproduces asexually through a process known as binary fission. During binary fission, E. coli undergoes a cycle where its DNA is replicated and the cell enlarges. The cell then splits into two identical daughter cells, each inheriting a copy of the DNA. This method of reproduction is very efficient and allows bacteria like E. coli to multiply rapidly in favorable conditions, sometimes leading to a large colony in a matter of hours.

Unlike E. coli, S. aureus (B), P. aeruginosa (C), and Streptococcus (D) are not typically associated with the large intestine of mammals.