Protects brain and spinal cord from trauma, as well as supplies nutrients to nervous system tissue. It also removes waste from cerebral metabolism.
The correct answer is: B) As land plants became more complex, animal life did as well.
This is because land could not be colonized by other organisms such as animals until land plants became established-there was nothing for animals to feed on.
So, plants were one of the earliest organisms to leave the water and colonize land.
Answer:
I'm guessing because there is a more likely change that bacteria will infect the wound because of the bacteria in the water
Answer:
c.Ionic bond is formed between two metals or two non metals.
