Answer:
B) skeletal system.
Explanation:
The muscular system is working with the skeletal system and such phenomena is usually termed as Musculoskeletal System.
The Musculoskeletal System comprises of the bone, ligament, muscles, cartilage, tendons, etc. Bones are connected to these muscles fibres that house receptors via connective tissues (e.g tendons and ligaments). They muscle keep the bones in place and doesn't make them indisposed. The role of the bone are to provide firmness, and rigid stability of the body. so, when receptors in the muscles communicates with the brain with information about position and movement, the feedback activity is performed by the skeletal system.
Answer:
I'm not sure about the donkey kong one but for the dog food one they see the reactions of dogs. They might have a human tester but i'm pretty sure no one would think dog food is good.
There are many Non-prescription drugs abused by many people around the world. Some include NyQuil, or any sort of Cough Medicine
Answer:
yeah i think thats a period lol i hope i got this right :D
Explanation: