They are all made of tissue and cells.
The kid has down syndrome which can cause kids learning regular tasks at a later age. Don't quote me on this.<span />
Trees my good sir. Have trees planted regularly, and temporarily block the use of gasoline powered cars! Modes of travel to electric and sea. I guess that's just my view. Also! cut down on pesticides
DNA helps scientists to better classify organisms is because each organ has a specific kind of DNA. For an example, brains and hearts have many small types of RNA. So if a scientists see some RNA they know that its a heart or a brain.
Answer:
It is called oxygen-rich blood.
Explanation: The heart pumps blood to all parts of the body. Blood provides oxygen and nutrients to the body and removes carbon dioxide and wastes. After the blood gets oxygen in the lungs.
