Certain regions of Earth have rich biodiversity of species.What are these regions called?Give examples. The process of accumulation of changes in the body design leads to evolution.Comment.

1. It is referred to as biodiversity hotspot.
2. The organisms show changes in their physical attributes and genetic make up due to many reasons such as
  • variation due to sexual reproduction
  • change in genetic material due to mutation 
  • adaptation
When an organism reproduces it passes these changes in the future generations. And the next generation passes its changes along with the previous changes onto the new generation. Over many generations these changes keep on collecting leading to a marked difference in the organisms of current age from the ancient times, particularly in body design; thus, leading to evolution

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