Signals from neurons and the body's nervous system are received by the brain and the spinal cord.
OR
Signals from organs and the body's senses are received by the brain and the spinal cord. (I looked it up on quizlet to make sure I was right, and someone had organs and senses for the blanks, so I put it here just in case)
I'm not sure which answers your teacher(s) accept, but hopefully this helps.
The answer is A. Removing waste.
All cells reproduce by duplicating its DNA & dividing into two (MITOSIS), Cells MUTATE resulting in incorrect changes to DNA; mutation occurring over many generationsCells are all living things are made up of cells. Cells are the basic units of structure and function in living things and Living cells come only from other living cells.
The same way water climbs up a paper towel. the pores of the tree carry the water upward.
