There is variation within the population, due to a mutation. The selection pressure is the drug. The microbes that have the advantageous gene which makes them resistant to the drug are selected for, and reproduce passing on the gene, increasing its allele frequency within the population over time. However, the microbes that do not have the advantageous gene, cannot survive and their number decreases within the popullation.
Water! It is the source of all life.
Producers (plants) are important to our ecosystem because they are the base of life. If it wasn't for producers, you wouldn't be eating your salad while your reading this answer. That chicken you had yesterday wouldn't be there if it wasn't for corn (a producer).
<span>if you increase concentration of one side it will shift to the</span>gv
Answer:
b. A Wood's light examination
Explanation:
A wood lamp examination is a test that uses ultraviolet light to examined a skin infected with bacteria or fungal infection.
