The nucleus and the ribosomes to synthesize protein synthesis.
I believe it is the crust
Answer:a compound present in the body as a neurotransmitter and a precursor of other substances including epinephrine
Explanation:
Because some of them are immune and only works for one thing in the system
Clouds can block light and heat from the Sun, making Earth's temperature cooler. You've probably noticed this kind of cooldown on a cloudy day. However, some heat from the Sun does get down to Earth. Clouds can trap that heat from the Sun.
