Answer: sunlight, carbon dioxide, and water
Explanation:
This happens in photosynthesis
A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.
Hippocrates taught that disease was the result of natural causes
the only flying mammal is a Bat
