Species selection. Species selection is the process by which intrinsic biological characteristics in organisms change depending on the type of environment they're interacting with. In this case, the subsequent generations of the fly lost the ability to fly because their environment didn't require them to use wings for survival, hence they stopped growing them and subsequently lost the ability to fly.
Yes, it’s main function is to protect the organisms from germs, bacteria etc... and cover the essential organs from these organisms too.
<span>In short, Family history plays a big role in the health of your heart. In Don's case he already have a huge history of high blood pressure which is regardless of his lifestyle choices.</span>
Equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi or
