I am not thinking of a creature but of a tree which is the gingko tree which was in existence back 200 million years ago and there is one on a street where we lived in Vancouver BC and they grow in various parts of the world still. The coelocanth is a prehistoric fish which still lives in the sea also. I think that evolutionists would view such living 'fossils' as proof that these organisms were so well adapted to a wide range of environments or were able to find environments that they originally thrived in that they could survive so long. Also, probably the longer they survived changed conditions the tougher they would get. A creationist would say aha that shows that species don't change and evolve which of course would deny the overwhelming evidence of the change in species through time such as amongst man's ancestors.
Answer:
Written below.
Explanation:
5. During meiosis, a reproductive cell and its nucleus divide twice and produce four cells––two pairs of identical haploid cells.
6. Homologous chromosomes are two pieces of DNA within a diploid organism that carry the same genes, one from each parental source. In simpler terms, both of your parents provide a complete genome. Each parent provides the same 23 chromosomes, which encode the same genes.
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: Divergent is the correct answer
Explanation: Did a whole test in 6th grade and got it right :3
