Answer:
Muscles move body parts by contracting and then relaxing. Muscles can pull bones, but they can't push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint.
Explanation:
Answer:
Jamie should be having high in vitamins and minerals because it is something our bodies need.
Explanation:
It should be C
False unless you are breathing through your mouth.
Answer:
Because of a spinal reflex
Explanation:
Phototropism is a reaction to light but it only occurs in plants.
Umm I think that it is normal because some people are different then other
