Select the correct answer from each drop-down menu. Neurons and muscle cells perform different functions. In the body, these cells have the same . The function of muscle cells is , while the function of neurons is to send nerve signals.

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Number and variety of living organism; includes genetic, species, and ecological types