Basically we can divide the whole cycle into 6 phrase. menstruation, repair phrase, ovulation, receptive phrase, and pre menstrual phrase, all in this order.
usually a cycle takes around 28 days, but it can sometimes be longer or shorter depending on different women.
for around the first 5 days (again, it's not exact days) it's menstruation, uterus lining is shed out from the vagina. this only occurs if fertilisation and implantation does not take place.
then for the next few days, it's the repair phrase, oestrogen helps repair the lining of uterus, to thicken it up, to prepare for fertilisation and implantation, a place for the fetus to develope.
next 3 days will be ovulation, where the ovary will release one mature egg (but sometimes 2 or none) into the oviduct, the egg can only survive for a few days so if fertilisation doesn't occur during this phrase, menstruation will occur that cycle.
next will be receptive phrase, where the lining keeps on thickening, and the thickness is maintained by progesterone, another female hormone.
at last it's the pre menstrual phrase, lining will start to degenerate unless implantation ocured.
hope this helps
Answer: study the scientist data
Explanation:
a tropical rain forest is usually humid
DNA plays a major role in heredity, composing the genes that are passed down from parent to offspring. It also plays a major role in the everyday workings of your cells. It does this by creating molecules, such as enzymes, that regulate cell functions. These enzymes belong to a larger class of molecules known as Proteins.
- DNA is important in terms of heredity. It packs in all the genetic information and passes it on to the next generation. The basis for this lies in the fact that DNA makes genes and genes make chromosomes. Humans have 23 pairs of chromosomes – a total of 46 chromosomes.
- Information that is stored in DNA molecules is used to manufacture proteins through the process of transcription and translation.
- During transcription, DNA molecules are used to generate mRNA (messenger RNA), which then undergoes translation in the cytoplasm to generate proteins. These proteins include enzymes that control or regulate and catalyze different biological reactions in the body.
- Additionally, one of the characteristic of protein is being protein in nature which means like proteins they are produced through translation in the ribosomes.
To learn more about the DNA please click on the link brainly.com/question/16099437
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Answer:
c. Temperatures in the tundra range from extreme highs to extreme lows.
Explanation:
all other statements are true
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