Gujarati
6.Evolution
normal

The presence of temporary gills in the embryos of snakes, birds and man indicates that

AThese embryos need gills for breathing
BAncestors of these animals had gills at one stage of evolution
CLungs evolved from gills
DMedium in which these embryos develop resembles ${O_2}$ rich water

Solution

It’s Obvious
Standard 12
Biology

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