Digestion. Digestion is the breakdown of food into simpler molecules that can be absorbed by the body. The digestive system is actually a long hollow tube called the gastrointestinal tract, or GI tract. The digestive system includes the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. Several major glands include the salivary glands, the pancreas, and the liver. The first task of the digestive system is to break down food into a fine pulp (mechanical digestion). When the food is physical broken down, digestive chemicals break the food down into small molecules (chemical digestion). The mouth is the organ in which the process of digestion begins.
clone. Noun. 1. A cell, group of cells, or organism that is produced asexually from a single ancestor. The cells of an individual plant or animal are clones because they all descend from a single fertilized cell. A clone may be produced by fission, in the case of single-celled organisms, or by budding, as in the hydra.
Cloning is the process of creating genetically identical copies of biological matter. This may include genes, cells, tissues or entire organisms. When we speak of cloning, we typically think of organism cloning, but there are actually three different types of cloning.loning techniques are laboratory processes used to produce offspring that are genetically identical to the donor parent. Clones of adult animals are created by a process called somatic cell nuclear transfer.