Answer:
Through natural selection the disease gain immunity to the antibiotic.
Explanation:
As the antibiotic kills off the members of the population that are not resistant, leaving only the resistant members. These members then reproduce, passing the immunity to their offspring, causing the population to become immune.
Answer
tac tag gct tac tcg cgg cta ttc gtc atc
Explanation:
Answer:
c
Explanation:
The salinity of the water is increased.
Answer:
4. Microorganism
Explanation:
Wind, Salinity, Soil moisture are abiotic factors, non living things.