Once implantation is complete, the developmingredients organism is called ? A.fetus b.zygote c.germ disk d. Embryo I am think c

Answer 1

http://www.parents.com/pregnancy/stages/fetal-development/
If you do not know what zygote, embryo, etc., mean, look them up in a dictionary, or consult your text materials. Reading assigned text materials is a new idea, and it works!