Answer:
Option C. Cells only contain the genes necessary for the building of specific proteins.
Explanation:
Each and every cell contains a gene which is responsible for the production of specific proteins for the body. Two different cells produce two different types of protein due to different gene composition. In multicellular organisms, different functions are performed by different cells which are different from other body cells due to the different gene and protein structure.
In flatworms, the PHARYNX is used to gather food.
The digestive system of the flatworm is made up of the mouth, the pharynx and gastrovascular cavity. The pharynx is a muscular tube through which the flat worm can suck food into its gastrovascular cavity. Food normally passes from the mouth through the pharynx and then into the intestine where the food get digested by the cells lining the intestine walls.
The diaphragm is the large dome-shaped muscle that rests right under the lungs and separates the abdominal cavity from the thoracic cavity. The contractions of the diaphragm are what truly facilitate the movement of air in and out of the lungs. The contraction of the diaphragm, or breathing in, leaves more room in the chest cavity for the lungs to expand as the diaphragm "tightens". The expanded lungs are filled with oxygen-rich air which is then is diffused through capillaries to different parts of the body. The process of breathing out occurs when the diaphragm relaxes, slowly resuming its position its original position in the chest cavity. When relaxing, carbon dioxide is forced out of the lungs.
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The EEG scan of the brains of children with autism SHOW FEWER BRAIN REGIONS WITH SYNCHRONIZED BRAIN WAVES compare to the brain of the control group. This means that there is decreased connectivity throughout the brain of those with autism.