Q. At the time of implantation, the human embryo is called
A) Embryo
B) Blastocyst
C) Zygote
D) Foetus
Explanation
The embryo with about 64 cells is termed as blastocyst. The process of attachment of blastocyst with the uterine wall of mother is called implantation. It occurs after 7 days of fertilization.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.