In the third through eighth weeks of a human pregnancy,the developing organism is referred to as a(n)
A)zygote.
B)embryo.
C)blastocyst.
D)fetus.

Question

In the third through eighth weeks of a human pregnancy,the developing organism is referred to as a(n) 
A)zygote. 
B)embryo. 
C)blastocyst. 
D)fetus.

Quizplus · Accepted Answer

From the third through eighth week of pregnancy, the developing organism is considered an embryo. This is the stage where the major organs start to form and the body structures begin to take shape.

(A) A zygote refers to the fertilized egg immediately after conception.
(C) A blastocyst is the term used to describe the early stage of development, typically within the first week after fertilization, when the zygote undergoes multiple cell divisions.
(D) A fetus refers to the developing organism after the eighth week of pregnancy when all major organs have formed, and the body structures become more refined.

In the Third Through Eighth Weeks of a Human Pregnancy,the