I think it is the somatic nervous system.
Protists are least similar to bacteria because all the others are eukaryotic cells. Bacteria are prokaryotic.
Answer:Gravity is super important to our everyday lives. It is the Sun's gravity that keeps the Earth in the suns orbit. All of the Life on Earth needs the Sun's light and warmth to survive. Gravity helps the Earth stay just the right distance away from the Sun, so it's not too hot or too chilly.
Explanation:
To keep them going and making blood pop around
