I'm pretty sure tension is your answer.
No they are the same species just different breed, think of it like humans. does being light skin make you a different species? no
The appropriate response is Smooth muscles. Smooth muscle is found in the dividers of empty organs like your digestion tracts and stomach. They work naturally without you monitoring them. Smooth muscles are associated with many 'housekeeping' elements of the body. The strong dividers of your digestive organs contract to push nourishment through your body.
Answer:
The answer is The cell that contains the nucleus.
