They are cerebral ventricles
Its D, im pretty sure theres not starch or acid in our DNA
U just check a few of them and pretty much close the app then they should be cleared :)
Mitpchondria, I hope I helped,Can I have brainliest!
Answer:
<h2> I don't know but my Answer is </h2><h3>from different environments ,each structure suits their environment better than the other's</h3>
