G...eventually the larger fish would catch on that these smaller fish are a problem.
<span>The answer is general senses. These are the senses which
are professed by reason of the receptors distributed all over the body such as temperature,
touch, and starvation, instead of knotted to a particular structure, like the
special senses - sight or hearing.</span>
The eardrum send the vibrations to the inner ear
The alimentary canal includes mouth, esophagus, stomach, small intestine, and large intestine. As food passes through the alimentary canal, it is exposed to the different chemical secretions from the organs of the alimentary canal, as well as from other organs, such as liver and pancreas.
First, in the mouth, salivary glands produce saliva which <span>contains enzymes involved in the food digestions. After the food is passed to the esophagus, it produces mucus to help passage of the food. In the stomach, acid and pepsinogen, as well as mucus are produced. All of these secretions help food digestion. Small intestine also produces some digestive enzymes. Further, bile from liver and enzymes from pancreas are secreted via ducts into small intestine. Finally, large intestine secretes mucus for lubrication.</span>
