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LAMARCKISM –Theory of Inheritance of Acquired Character –(i) Internal Vital Forces :(ii) Effect of environment and new needs –(iii) Use ...

Introduction Humans are sexually reproducing and viviparous organisms. Their reproductive events include the formation of gametes (gametogenesis), i.e. sperms in ...

A vast number of plant and animal species have existed on the earth for several thousand years. The process in ...

Introduction The living world around us exhibits a vast range of life forms which make this planet a wonderful and ...