Answer:
Valence electrons, or the electrons that are farthest from the nucleus.
Struggled with this earlier but because of the high altitude only some animals can live there and thrive because of the lower oxygen levels
A- Flatworms are unsegmented and only have one mouth/anus opening. And they are obviously flat
Answer:
Tyrosine derived neurotransmitters
Explanation:
These neurotransmitters are produced as a result of the conversion of tyrosine when not incorporated into proteins or energy production is converted to catecholamines.
These catecholamines includes dopamine, norepinephrine, and epinephrine.
All these three catecholamines produce various effects in numerous locations in the body acting either as a neurotransmitter or as a hormone
ATP/Energy —- why does this have to be at least 20 characters long lol.
