The reason why eukaryotic cells are in need of turning on
and off their genes when necessary because of the reason that they may feel
stress because they are under stress as they have the responsibility of acting
immediately when they needed and by that, they need to be turned on or off in means
of adapting to the stress that they experience.
Genetic Variation Natural selection results in organisms that are better suited to their environment are able to pass on genes to create strong offspring
Chemical digestion involves the secretions of enzymes throughout your digestive tract. These enzymes break the chemical bonds that hold food particles together. This allows food to be broken down into small, digestible parts.
cigaratte smoking is injurious to health because it affects our lungs,heart and different internal organs of our body which is cause of cancer and other non curable diseases.
