The answer is 'instinct'. This is innate complex behavior exhibited by an organism that is not learned. Some common examples are dogs shaking themselves dry when wet, honeybee communication via intricate dances, animal courtship behavior during mating season and the building of nests by birds.
The stomata of a plant are microscopic slits on the leaves that serve the purpose of absorbing carbon dioxide from the surrounding air so that it can perform photosynthesis to make its own food and release oxygen into the atmosphere. The correct answer is B, absorb gasses.
Hope that helped! =)
Culturing of microbial organisms allows experts to determine what type of organism is present and at what conditions it abundantly exist. This is an essential tool to determine the cause of contagious/infectious disease so that experts will have a clear understanding how to combat it.