Zone 3 is a tropical zone, while zones 2 and 4 are temperate.
Since Zone 3 is around the equator and between the two tropics, it is a tropical zone.
Zone 2 and 4 are temperate since they are farther away from the equator, but not too close to the North and South poles.
I hope this helped! :-)
1) Tryptophan
2)Arginine
3)Cysteine
Hope I helped, good luck in the future !
Answer:
D
Explanation:
disinfection i think havent really learned this
