Answer:
Either D or C
Explanation:
It depends on the size of the group but I would go with D being that it is a single species. Hope this helps!
Answer:
Es un sistema biológico construido por una comunidad de organismos vivos
Answer:
nuclear energy
Explanation:
An atom has a nucleus (or core) containing protons and neutrons, which is surrounded by electrons. Protons carry a positive electrical charge, and electrons carry a negative electrical charge. Neutrons do not have an electrical charge.
You want about 500 calories a day extra.