Answer:
fertilized egg
Explanation:
Zygote, fertilized egg cell that results from the union of a female gamete (egg, or ovum) with a male gamete (sperm). In the embryonic development of humans and other animals, the zygote stage is brief and is followed by cleavage, when the single cell becomes subdivided into smaller cells.
Britannica
D they are easily contained charges so on and off is no problemo
97% is salt water, hope this helps.
Answer:
the order it response to is the brain through relex action