<span>prokaryotic cells have no nucleus </span>
Easy,
1- Proteins gives us energy
2- Proteins help us in cell repair and they take part in cell reproduction
3- Proteins contain powerful particles that diffuses and give energy to do work
4- Proteins are powerful
Blood is the fuel that keeps you going! Oxygenated blood is brought to organs and tissues via the arteries, while veins bring deoxygenated blood back to the heart to be replenished. The point is, without the respiratory system your blood would be useless.
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
The first question will be the one talking about the rash
The second one will be the one talking about ethylene
