It is important to mention that "horizon" make reference to each layer that the soil has. Each of them has different characteristics which allow them to fulfill different roles.
If you want to plant the most appropriate horizon would be A. (A horizon) This is made up of mineral and decomposed matter and it presents a dark color. here many plats roots grown in.
Answer:
B: Energy
Explanation:
Sorry, I'm not COMPLETELY sure it's this, but yeah, try it!
Answer:
a neurotransmitter binds to its receptor on a receiving cell
Explanation:
Really really really small
