Explanation:
Recombinant DNA technology enables us to change the physiology of a cell. Through this, we can produce many humanoid enzymes in other organisms... For example insulin.
<span>Evidence that supports this includes the lack of true tissue in sponges and the close similarity between choanocytes and choanoflagellates.</span>
<span>It replaces damaged cells
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There are at least three primary functions that are performed by the epithelial tissue.Firstly it provides a great protective covering for all the tissues lying beneath it from radiation, toxins, physical trauma, desiccation and invasion of pathogens. Secondly it helps to regulate the exchange of chemicals between the body cavity and the tissues that lie underneath the epithelial tissues. It also helps in the secretion of the hormones in to the bloods. These are all major but primary functions of the epithelial tissues. From this we can easily understand the importance of the epithelial tissues.</span>
The function of folded shape of inner membrane of the mitochondria referred to asthecristaeis to increase the surface area of mitochondria and the enzymes for respiratory site (electron transfer system).
