Natural selection can cause speciation, which increases the biodiversity of an ecosystem. Several bacterial colonies are placed on a petri dish that contains agar with antibiotics. After 24 hours, ninety percent of the original bacteria die, but the remaining ten percent survive and later reproduce.
Bacteria is good, but there is some bad. in this case, your talking about your digestive track therefore, this is good bacteria and what bacteria does is it breaks down the stuff that your body cannot break down by itself so the answer is C I hope this helped and I hope it was the branist answer
Answer:
Its d. ive done it before.
Just use quiz lit and it’ll give you all the answers have a great day
