Answer: Dopamine
Explanation:
It is made in the brain and also can be used as messengers particularly chemical messengers to relay message between nerve cells. It also help in how we feel pleasure and also assist us with that special ability to think first and then plan.
Molecules spread out. Molecules from places with high concentration to low concentration.
Answer:genetic make up was not affected
Explanation:outside factors can not alter someone's genetic traits;as twins no matter where they are and what environment they are in they will still possess similar genes.
Answer:
50%
50%
Explanation:
Equilibrium is a state in which opposing forces or actions are balanced so that one is not stronger or greater than the other Supply and demand were in equilibrium
Explanation:
Leaf cells have chloroplasts, but root cells do not. Leaf cells can absorb nutrients from the air, but root cells require soil to absorb nutrients.