Answer:
On her blood testing it is found out that ovaries are producing excess testosterone which is lowering her LH and FSH levels. The main cause of subfertility is low levels of these hormones. Low levels of FSH have been associated with the increased risk of ovarian cancer.When FSH levels are too low or too high it can complicate the ability to become pregnant. A normal FSH level for a woman hoping to conceive is typically below 10 ml IU/ml.
Explanation:
- <u> Luteinizing Hormone(LH)</u> : Just like FSH it is also a gonadotrophic hormone produced and released by cells in the anterior pituitary gland.It is crucial in regulating the function of testes in man and ovaries in women.This hormone carries out different roles in two halves of menstrual cycle.In weeks one to two of the cycle, LH is required to stimulate the ovarian follicles in the ovary to produce female sex hormone called oestradiol. Around 14th day of cycle a surge in the LH caused the ovarian follicle to tear and release a mature oocyte (egg) from the ovary and the process is called ovulation. In the remaining of ovarian follicle become corpus luteum. LH stimulates the corpus luteum to produce progesterone very much needed for the early phases of pregnancy, if fertilisation occurs. Low levels of LH in women can lead to amennorhea.
- Follicle stimulating hormone: shares the similarity to the LH.A normal FSH level for a woman hoping to conceive is typically below 10 ml IU/ml.When FSH levels are too low or too high it can complicate the ability to become pregnant.. Low levels of FSH have been associated with the increased risk of ovarian cancer.
Ovarian cancer: Main causes of ovarian cancer are women with the personal history of breast, uterine or coon cancer, obesity. Use of certain hormone therapies and use of certain fertility drugs.It happens when cells in the ovary grows and multiply uncontrollably producing a lump of tissue which is called tumour.
Amenorrhea: Common cause include menopause, use of birth control,delayed puberty and stress and medication side effects.It also includes problem with hypothalamus which can cause an imbalance in the hormones that can prevent periods from starting & some ceratin chromosomal and genetic abnormalities.
Answer: C. Dead snake fossilizing underground.
A fossil fuel is the fuel that is formed by natural processes, such as anaerobic decomposition of dead plants and animals underground. These organisms and their remains remain deep inside the depth of numerous layers of soil resulting in fuel produced after millions of years. A carbon sink refers to a natural or artificial reservoir that stores and absorbs atmospheric carbon by physical and biological process. The formation of fossil fuel inside the earth is carbon sink.
Dead snake will be added as a matter on which biological activity called as decomposition will take place. The organic matter of dead snake will be decomposed by microbes in the soil. The organic matter being the source of carbon, after decomposition will become the reservoir of carbon in the form of fossil fuel.
Therefore, dead snake fossilizing underground is the example of carbon source becoming a carbon sink.
I believe it is B. Destruction of cells by viral reproduction :)
The answer is Lava cause Lava is merely the ingredients, so to speak, of a rock. It is called molten rock but is not a rock in itself. <span> It has all of the minerals that will eventually "make" an igneous rock when it cools, but it is not a rock until it cools, ceasing to be lava and becoming an igneous rock. </span>
Answer:
The answer is Blood Urea Nitrogen.
Explanation:
Proteins in the body when broken down form a waste product known as Urea. The analysis of the urea nitrogen in the blood will measure the amount of nitrogen in the blood that comes from the urea. It is produced in the liver and is eliminated in the urine. It serves as an indicator to see how the kidneys are working.
