Question:
Give two difference between a zygote and a foetus.
Answer:
Zygote:- Zygote is single cellular.No well defined body parts.It is formed during fertilization when sperm fuses into ovum.
Embryo:-mbryo is multi-cellular.Has well defined limbs and other body parts.Embryo formation is a post fertilization process in which zygote multiples intomulti-cellular body.