Not sure but my best guess is to go with B. It just makes the most sense.
It is B because cells are basic and they grow everything that you see around you
Protoplanets are bodies or celestial objects which have the same size as the moon or a bit bigger. These bodies develop to eventually become planets. Therefore, the answer to this item is most likely letter D. outer planets.
Seaweed is a type of algae.
Explanation: Seaweeds are a group of photoautotrophic, multi-cellular algae occurring in marine environments.
B. the nervous system connects bones
