Am amniotic egg is first developed in the reptiles.
The membrane and shell make a protective membrane that can provide a safe environment for the cells to divide, and embryo to develop. Animals having an amniotic shell are called as amniotes. The other body parts develop later on.
D. Water is a byproduct of cellular respiration.
According to the nebular hypothesis,stars form in massive and dense clouds of molecular hydrogen—giant molecular clouds
Increases plant growth, more transpiration
