Cornified scales of reptiles increased their capacity to live in terrestrial environments. The stratum corneum is very thin, with little keratin. Skin is used for gas exchange. Thick keratin layer ...
What to Expect on MSN2mon
Why Your Practitioner Might Have to Break Your Water During Labor and How It WorksThe amniotic sac has been protecting your baby throughout your pregnancy. But when your little one is finally ready to make an appearance into the world, the bag of waters' time has come to an end.
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