A planet cell is a cell on a planet
Vomit? Idk exactly what the questions means...have you tried google??
Answer:
Arthropods have a tough, non-living outer shell called exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons, which develops within the deeper skin or body tissues and act as their protective covering.Explanation:
Answer:
Enzymes help chemical reactions occur by decreasing the activation energy.
An Engine-generator, commonly called a generator, converts chemical energy in gasoline into rotary mechanical energy, which is converted into B) electrical energy
