If a bacterium cannot use citrate agar will not change its color (stays green). On the other hand, if bacteria have the ability to use citrate, the medium will change its color from green to blue.
This happens because citrate agar contains pH indicator such as bromothymol blue which transforms from green to blue in alkaline conditions.
There are several mutations that benefit the organism.A well known example is the antibiotic resistance developed by bacteria, which aid in their survival even when they are exposed to a given antibiotic. A single gene mutation in wild almond trees resulted in a variety that no longer synthesizes amygdalin.
Boys need 2,400 to 3,200 a day, while girls need 1,800 to 2,400 a day.
Hope this helps!
Bees are endangered because of environmental stress. Environmental stress may come from pollution, exposure to lethal amounts of pesticides, and due to scarcity of pollen.
Answer:try a gel manicure or pedicure
Explanation:
Gel manicures although they run higher risks of skin cancer from the ultraviolent lamp used to dry the polish do last on average 50% longer.
