Animals are used for the variety of scientific and medical purposes. Scientists use laboratory animals to examine biological processes in humans and animals. They use them to study the causes of diseases, to test drugs, vaccines, and surgical techniques. Also to evaluate the safety of chemicals used in pesticides, cosmetics, and other products. In many cases, scientific and biomedical research can be performed on laboratory consist of specific cells, or on simple life forms such as bacteria. Some research is better performed by studying the more complex responses of an animal.
The reason of using animals is that their function essentially like humans and tit makes them be the best models for experiments on fundamental processes such as breathing, eating and digesting food, and reproducing. Some animals also suffer the same diseases as humans do, with immune systems that respond likewise to disease-causing agents such as viruses and bacteria. Animals also bear a number of genes that are identical to human genes. By that similarity information, scientists have been able to learn much about the human body by studying animals.
In competent research, the neurobiologists make an experiment on rats and mice. They investigate their ways to fix nerve tissue and restore movement. Animals are also being used to seek cures for today’s most pressing diseases, including Acquired immune deficiency System Disease (AIDS).