Write a short note on evolutionary modification in different types of kidney
Answers
this article will elucidate the extra ordinary parallel between the evolution of the kidney fron provertebrates to man. in invertebrates , the excretory structures are classified into three types included contractile vaculoes in protozoa, nephridia ( flame cell system) in most invertebrate animals and malpighian tubules ( arthropod kidney) in insects. while, in invertebrates, there are three distinct excretory organs formed in succession during the development of the vertebrate kidney , they are called pronephros,mensonephors and methanephors. conclusion: from this review, it can be concluded that the important factors in the evolution of the basic structure and function of the vertebrate kidney appeared associating with body fluid- regulation, involving the maintenance of a constant water and salt content of the body.as the evolution of the vertebrate kidney and illustrates how pronephric, mensonepheric and metanephric kidneys are represented successful evolutionary responses to the surrounding environmental pressures