Neurons and neurotransmitters didn’t see first answer please make Brainlyist have a good day
The answer is d/ the fourth one
Answer:
The clear water representing blood, which runs through the
plastic tubes, will become green as particles from the cardboard tube
are absorbed.
Explanation:
the bold letters are answers
Igneous rock?? sorry if this is wrong
Answer:
1 migration
2 the northern regions have become warm