The animals in which complete embryo develops in the mother's body through placenta are
Oviparous
Viviparous
Ovo-viviparous
Herbivorous
Give the names and functions of the hormones involved in the process of spermatogenesis. Write the names of the endocrine glands from where they are released.
The seminiferous tubules of the testis opens into the vasa efferentia by
During cleavage $DNA$ synthesis
The estrous cycle occurs in
Middle gastrula is characterised by