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: option C - gametes; zygote
Explanation:
Sperm and ova are known as GAMETES and when they fuse they form a ZYGOTE.
Note: Sperm is the male sex cell,
Ova is the female sex cell. On mating, the sperm fuses with the Ova to form Zygote, which gradually becomes embryo, and then foetus
Answer:
an experiment
Explanation:
In the personality research methods, an experiment is the method determines the effect of one variable or more variables on the behavior. In personality research methods, we conclude that :
-- it can be stable as well as predictable
-- it is based on the behavior and the personality traits
-- it is resistant to the sudden changes
Answer: phylum Echinodermata