Carbohydrates and proteins
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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.
C. arteries grow smaller !
they are activities that arouse or stimulate your baby's sense of sight, sound, touch, taste, and smell. Infant stimulation can help improve your baby's attention span, memory, curiosity, and nervous system development.