Question

Explain the terms:

a. Implantation

b. Placenta

c. What is the average duration of human pregnancy?
answer please

​

Answer 1

Answer:

(1) Implantation : It is the process of after fertilization the attachment of the ovum to the endometrium.

(11) Placenta : Placenta is the connection between mother and embryo. Placenta play the role of respiration, nourishment and excretion of the embryo.

(b) average duration of human pregnancy is 40 weeks.

Explanation:

Hope it will help you

Please mark me Brainliest

Answer 2

Explanation:

Explaintion of Implantation :-

Implantation is a process in which a developing embryo, moving as a blastocyst through a uterus, makes contact with the uterine wall and remains attached to it until birth. The lining of the uterus (endometrium) prepares for the developing blastocyst to attach to it via many internal changes.

___________________________

___________________________

Explaintion of Placenta :-

The placenta is an organ that develops in your uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood. The placenta attaches to the wall of your uterus, and your baby's umbilical cord arises from it.

__________________________

__________________________

What is the average duration of human pregnancy :-

The unborn baby spends around 38 weeks in the uterus, but the average length of pregnancy, or gestation, is counted at 40 weeks. Pregnancy is counted from the first day of the woman's last period, not the date of conception which generally occurs two weeks later.