I'm pretty sure your talking about Vertebrates
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
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Because it is your ancestors that might trade different similarity's to you through your family.
Animals have Mitochondria that use the sugars provided by plants to produce their own cellular energy :)
Because they need to make a lot of light
