A 1:10 dilution was made of microbial broth and then was diluted 1:100. 20 colonies were then counted. How many microbes/mL were present in undiluted broth?

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .

the contamination

we are putting to many trash.

answer >   yes we do, women; have three holes, urethral opening(pee hole, vagina, and the women pee/girls pee out of the urethra like the men do; only they have a single opening to pee/ejaculate.   (sorry if i'm too forward with this, but this is for a biology class, isn't it? )

hope that !         : )

answer: dna

because all cells have genes