In Pheretima mouth develops from which of the following

In menstrual cycle other name of follicular phase is....

Vascular system and excretory organs are developed from

The eggs in which fate of every part of the egg becomes fixed are called

Drugs such as Thalidomide taken by woman in first trimester of pregnancy cause all the following malformations in the developing embryo, except

The distal narrow end of the uterus is called......