Answer:
The endometrial lining is shed during menstruation and is then regenerated by the hormone estrogen.
Explanation:
The menstrual cycle can be described in terms of:
1. <u>OVARIAN cycle</u>: divided into
-Follicular phase of variable length lasting between 7 and 21 days.
-Ovulation
-Luteal phase which is fairly constant and lasts between 12 and 16 days.
The most common cycle length is 28 days and this occurs in 15% of women in their reproductive age
.
The duration of flow is between 2-6 days.
2. <u>ENDOMETRIAL cycle</u>: divided into
-Proliferative phase where there is increase in growth of the functional layer and the endometrial glands under the influence of oestrogen.
-Secretory phase where endometrial changes are influenced by progesterone activity.
The endometrium is made up of the basal layer and the functional layer.
The basal layer remains intact throughout the cycle while the functional layer is shed during each menstruation.
Answer:
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.
Explanation:
Answer:
using pipe cleaner, clay, foam sheet, and a plastic cup.
Explanation:
- cut the bottom of the plastic
- cover the sides of the cup with clay to make them thick like the wall of xylem vessel.
- make holes in the clay walls (resembling pits)
- use the pipe cleaner to make coils of lignin inside the cup.
Answer:
She is at risk for future obesity
Explanation:
Answer:Silent mutations arise while the alternate of a single DNA nucleotide inside a protein-coding part of a gene does now no longer have an effect on the series of amino acids that make up the gene's protein.
Explanation:
