Question

Over time staph bacteria have become resistant to the antibiotic penicillin. Which process explains how penicillin resistance developed?

A.
natural selection

B.
cooperation

C.
speciation

D.
extinction of a species

Answer 1

@Phebe @CountryGurl15 @leonardo0430 @inowalst @iGreen

Answer 2

i think it is either a or c

Answer 3

i need help, i will give medal and fan to whom ever does!

Answer 4

Ooooh that a hard one i think it's C =)

Answer 5

@Phebe , do u mind helping, i need it! i will give medal!

Answer 6

ok

Answer 7

thx! i think it might be a, but i am not sure if it is c as well

Answer 8

.......

Answer 9

because bacteria can multiply at such fast rate, they can mutate at a fast rate as well. Occasionally these mutations make them more resistant to antibiotics and so we need stronger and stronger drugs to be able to fight them.

Answer 10

let me see which answer choice

Answer 11

its Natral selection

Answer 12

thx

Answer 13

welcome

Answer 14

i need help on a few more, i will just tag you :P

Answer 15

ok