It is important so as to keep a steady income of beneficial nutrients. People with dementia in time lose their sense of differentiating food, so various foods keep them remembering the taste and the smell and the feel of the food. This is done to prevent them from stopping eating completely.
Chemical contaminants are chemicals toxic to plants and animals in waterways. The phrase 'chemical contamination' is used to indicate situations where chemicals are either present where they shouldn't be, or are at higher concentrations than they would naturally have occurred.
Yo, the correct answers are A. Prokaryote lacks a well the defined nucleus and C. Prokaryote lack cell organelles. I'm 100% sure about this :)
Some children have few day-to-day symptoms, but have severe asthma attacks now and then.. Other children have mild symptoms or symptoms that get worse at certain times. You may notice that your child’s asthma symptoms get worse at, with activity when your child gets a cold, or with triggers such as cigarette smoke or seasonal allergies.