Answer:
in vitro fertilization
Explanation:
In vitro fertilization is an assisted reproduction technique widely used in infertility cases. It was popularly known as the "test tube baby" technique. This is a process in which eggs are fertilized by sperm outside the woman's body, in vitro, which in Latin means "in glass".
In vitro fertilization is as follows:
- The woman receives special reproductive hormones to favor the development of several eggs;
- Final egg maturation is induced by the administration of another hormone;
- After 36 hours, the fluid containing the eggs is removed from the ovaries with a needle. This procedure is usually done with the sedated woman and the doctor uses an ultrasound to guide the needle to the ovary;
- The collected eggs are then mixed with the man sperm, which has already been washed and concentrated;
- Eggs and sperm are left in an incubator at 37 ° C for 24 hours for fertilization to take place;
- During this time, only one of many sperm will penetrate and fertilize the egg;
- After fertilization, the cells will divide and multiply to form an embryo;
- After 2 or 3 days, a healthy embryo will have 8 cells. It is then transferred to the uterus through a thin, flexible tube where it is left to implant and generate a pregnancy;
- After 12 to 14 days, it is already possible to know the result through the beta-hCG pregnancy test.
By the 4th month is when the baby is able to suck its thumb, yawn, stretch, and make faces.
By the 4th month, or the second trimester of a pregnancy, is when unborns call yawn, stretch, and do all of the listed things above. This is usually the month where you can also identify if the unborn is a male or female, since by month four, they develop their genitals and also organs. <span />
Answer:
Explanation:
According to USDA food profiling facts for Americans, people were consuming 3800 calories per person per day in year 2000, this was 800 calories more than what they consumed in 1957. The trend is definitely on rise and you can calculate from these number the percentage of increase.
Answer:
B, because she is shy and keeps to herself all the time.
