Just like any other organisms, individual bacteria can undergo random mutations. Many of these mutations are harmful or useless, but every now and then one comes along that gives its organism an edge in survival. And for a bacterium a mutation making it resistant to a certain antibiotic gives quite the edge.

What's the main idea of this? (10 words or less.)

answer; both surfaces of the membrane are nonpermeable

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602