Answer:
The Skeletal System is the system of structures that hold up your body. They keep you standing and hold a majority of your organs.
Explanation:
The lining is the e<span>ndometrium </span>
The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes
Jeremy is sitting quietly when the muscles in his left leg begin to “twitch.” This activation of movement in his voluntary muscles is most likely due to the release of the neurotransmitter Acetylcholine .
The primary function of acetylcholine is to carry signals from motor neurons to the body's skeletal muscles.