From fertilization to week 8 of pregnancy, the conceptus is called ________.
A) a fetus
B) an embryo
C) a baby
D) a zygote
E) a morula

Question

Quizplus · Accepted Answer

From fertilization until approximately week 8 of pregnancy, the developing structure is considered an embryo. This stage includes the formation of the major organ systems and basic body structures.

Answer: D
 The zygote is the product of the fusion of the egg and sperm at fertilization. While it does go through several stages of development before becoming a fully formed fetus, it is only referred to as a zygote for the first few days of development.

From Fertilization to Week 8 of Pregnancy, the Conceptus Is