Answer:
Natural selection.
Explanation:
Natural selection is when organisms who are most adapted to their environment survive and pass on their genes while those with "unfit" genes die and don't get the chance to reproduce! This slowly creates a population that is most well suited to their habitat. Hope this helps again LOL! :)
The organism that was most likely to live at the same time as brachiopods were
Trilobites
Brachiopods were like lamshells. They lived underwater, had soft bodies and their shells were bivalves.
Trilobites had three-lobed bodies. They could swim, crawl, and burrow.
Using a bike instead of a car
Mouth or nose. Then goes into your trachea and into your lungs
