1) closed circulation
2) The spleen can easily be damaged if someone suffers a sever injury to the stomach. When the spleen is damaged, it can cause pain in the abdomen, dizziness, and pain in the left shoulder.
The human skin is the protective layer of the human body against the external forces like the temperature, sharp objects, microbes, fungi and other related materials that can penetrate and weaken the body however, the integumentary system prevents any harm come to the organism. The dermis is the skin area which has different structures that perform different functions.
The appropriate response is serotonin. LSD is a medication that modifies the client's psyche. This implies it follows up on your mind. This type of medication changes your state of mind, conduct, and the way you identify with your general surroundings. LSD influences the activity of a cerebrum substance called serotonin. Serotonin helps control conduct, inclination, the faculties, and considering
Answer:
Scientists mostly gain new knowledge through direct observation and applying the scientific method. They would start with a hypothesis and test it, then change it or confirm it. Others would test their confirmation from one point, while the third group would test what the second said. And so on and so forth.
Explanation:
