Human chorionic gonadotropin (HCG) is secreted from the placenta.
- During pregnancy, the placenta's syncytiotrophoblastic cells largely generate the hormone human chorionic gonadotropin.
- To keep the pregnancy going, the hormone stimulates the corpus luteum to release progesterone.
- Along with the pituitary, the liver, and the colon, other organs that produce less HCG include the colon.
- The two subunits of HCG are HCG alpha and HCG beta .
- HCG injections are frequently used to promote ovulation in assisted reproductive treatments because they boost progesterone production in the corpus luteum during the early stages of pregnancy.
- It signals the body to stop menstruating and thickens the uterine lining to support a developing embryo.
- After fertilization, HCG levels increase and stay elevated for another 10 weeks or more of pregnancy.
learn more about Human chorionic gonadotropin here: brainly.com/question/12978175
#SPJ4
The Burgess Shale is a rock formation that is known for having an abundance of soft bodied organisms preserved in shale. This formation is significant because it preserves organisms from the Cambrian Explosion. The Cambrian Explosion is a period in time that coincides with the Pre- Cambrian- Cambrian boundary around 542 million years ago. The period represents an unusually rapid radiation of organisms.
Fossils of the Burgess Shale are thought to be well preserved because most were thought to be buried fairly rapidly and in conditions that had little or no oxygen. The rate of decomposition is slowed in these conditions so soft body parts of the organisms were preserved for millions of years in the mud-stone that eventually became lithified to shale. <span />
Membrane package is the answer
The aquifer may not refill.
