Is <span>Symbiosis an answer by chance? (if it's multiple choice)</span><span>
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In excreted urine, a reliable "marker" that a pregnancy has initiated is human chorionic gonadotropin (hCG).
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What is human chorionic gonadotropin?</h3>
- The trophoblast cells that surround a developing embryo.
- Eventually give rise to the placenta after implantation generate the hormone known as human chorionic gonadotropin, which helps women recognize pregnancy.
- Some pregnancy tests can detect the HCG's presence.
- The placenta secretes a hormone known as human chorionic gonadotropin throughout pregnancy (HCG).
- It tells the body to stop menstruation and makes the uterine lining thicker to support an embryo in development.
- After fertilization, HCG levels increase and stay elevated for another 10 weeks or more of pregnancy.
- As accurate as blood tests are urine testing.
- An individual is pregnant if their HCG level is high.
- An individual is not pregnant if a qualitative HCG test is negative.
- After a few days, a person should repeat the test if they still believe they are pregnant.
Learn more about human chorionic gonadotropin here:
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It occurs because of contraction of the muscle layers. There are two types of muscle found in the alimentary canal; longitudinal and circular muscle, the alternating contraction of these muscles forces the bolus of food through the digestive system.
A: Communication can help identify good Scientific questions to further investigate.
The importance of peer review is stated with repetition in regards to this subject for this particular reason: Hope it helps!
Answer: C. The population crashed.
Explanation: It is explained through the fact that there was a constant decreasing rate up until about 1925, to which the rate started to increase.