Formation of rudimentary eyes shown in the evolution of an organism is:

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Intermediate stage of evolution

Primary stage of evolution

Final stage of evolution

None of the above

answer is B.

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Detailed Solution

A new adaptive feature such as a new type of cell or a new metabolic pathway, a new embryological development that forms eyes, for example, arose due to permutation-combination, multiplication, deletion or metabolic modification of preexisting pathway for related or unrelated processes. Eventually, the light-sensitive spot evolved into a retina, the layer of cells and pigment at the back of the eye. Over time a lens formed at the front of the eye. ... The first animals with anything resembling an eye lived about 550 million years ago.

So, the correct answer is " Intermediate stage of evolution".

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