Answer:
Energy flow through ecosystems begins with producers. Chemical energy flow begins with consumers who obtain chemical energy by feeding on producers.
Explanation:
Answer:
D - Removes toxins and waste from the blood stream
You esophagus is your throat.
Cell Theory #1Cells are the basic structure and function of a living thingCell Theory #2All organisms (living things) are made out of cellsCell Theory #3<span>only existing cells can make new cells</span>
