most are formed when a plant or animal dies in a watery environment and is buried in mud and silt.
Answer:
blow dryer
refrigerator
phone
Xbox
Explanation:
they all use electrical current
Answer: it's because they need to provide a lot of energy.
Explanation: fat cells have many mitochondria because they store a lot of energy. Muscle cells have many mitochondria, which allows them to respond quickly to the need for doing work.