Certain genes that allow for a certain thing to happen are turned on or turned off as needed. A brain cell may have the gene needed to send electrical pulses to other brain cells or other parts of the body, whereas a heart cell may have the genes that allow it to contract to pump blood. (I don't know if those are real genes, but hopefully you get the idea)
The answer is A because it is basically a guess
Answer:
The correct answer will be option-B
Explanation:
Chlorhexidine is an antiseptic disinfectant which is used in the hospitals before surgery to sterilize the skin and the surgical instruments.
The chemical is used on the patient and the provider to clean the wounds as it is effective on a number of microbes but ineffective on the spores of the microbes.
The structure of the chlorhexidine contains the two phenolic rings and chlorine element.
Thus, Option-B is the correct answer.
Answer:
Ecosystem health indicators are measures which help us to understand where action should be taken to restore ecosystem health and associated benefits.
Explanation: