To produce an electric current, three things are needed: a supply of electric charges (electrons) which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges. The pathway to carry the charges is usually a copper wire.
Answer:
I think the white blood cells since these fight against infections by producing antibodies to neutralize toxic substances,these poisons might be too strong for the white blood cells to neutralize so they end up being damaged.
I hope this helps
It's B
Hope that helps, Good luck! (:
Explanation:
Bohr proposed his quantized shell model of the atom to explain how electrons can have stable orbits around the nucleus. The motion of the electrons in the Rutherford model was unstable because, according to classical mechanics and electromagnetic theory, any charged particle moving on a curved path emits electromagnetic radiation; thus, the electrons would lose energy and spiral into the nucleus.
The concept that is shown by the relationship between the Oahu Amakihi and the Kauai Amakihi is competitive exclusion.