Name the embryonic stage that gets implanted in the uterine wall of the human female. Also draw its diagram.

Name and explain the role of the inner and middle walls of the human uterus.

Answer the following : Describe the formation of spermatids in human males. Also draw a well-labelled diagram of the same.

At what stage of life is oogenesis initiated in a human female?

(i) Explain the events taking place at the time of fertilisation of an ovum in a human female. (ii) Trace the development of the zygote up to its implantation in the uterus. (iii) Give the name and draw a labelled sectional view of the embryonic stage that gets implanted.

In which of the following embryonic stages does the implantation take place ?

Draw a neat labelled diagram of T.S. of ovary of human female.

Name the paradise with its stage that causes the disease, elephantasis in man

Explain the development of a secondary oocyte (ovum) in a human female from the embryonic stage upto its ovulation. Name the hormones involved in this process.