Question

The new life in the first 3 weeks of pregnancy is called a(n):

a. neonate
b. embryo
c. fetus
d. zygote

Answer 1

The new life in the first 3 weeks of pregnancy is referred to as a zygote, and the correct order of prenatal development is zygote, embryo, fetus.

Step-by-step explanation:

The new life in the first 3 weeks of pregnancy is called a zygote. After conception, the zygote undergoes rapid cell divisions and travels to the uterus for implantation. Embryonic development begins once the zygote implants in the uterus, around the end of the first week post-fertilization. The developing human is called an embryo from weeks 3-8, during which major systems begin to form. After 8 weeks, the term fetus is used until birth. Therefore, the correct order of prenatal development is zygote, embryo, fetus.

The answer to the initial question would be 'd. zygote' and the correct order of prenatal development as per the options provided is: 'd. zygote, embryo, fetus'.

Answer 2

In the first 3 weeks of pregnancy, the new life is called an embryo. Development starts with the zygote stage, followed by the embryonic and then the fetal stages. final answer (d) zygote, embryo, fetus.

Step-by-step explanation:

The new life in the first 3 weeks of pregnancy is called a embryo. The stages of prenatal development occur in a specific order. Initially, the egg and sperm unite to form a zygote, which is a single-cell structure that divides and develops during the first two weeks after conception. This period is also known as the germinal stage.

Once the zygote implants itself into the lining of the uterus, it becomes an embryo. This embryonic stage lasts from the third week to the end of the eighth week post-fertilization.

Significant growth and development of body and organ structures occur during this stage. Following the embryonic stage, the life form is then referred to as a fetus from the ninth week of gestation until birth.