Everything that we eat and drink contains some percentage of water. So, to start, you have to know that the human body has receptors which estimate if we have enough water in our blood and cells in general. From these receptors, the information travels through the neurons to the part of the brain that is responsible for activation of different responses.
The digestive system is important because in its lower parts, liquids are absorbed and inserted in the bloodstream. Then through the bloodstream, they travel to all parts of the body and are absorbed by cells as needed. When blood passes through the body, it gets to the kidneys where water and electrolytes are filtered, reabsorbed if needed and excreted through the urine.
Now, if the brain has a signal that the body has a lack of liquids, it activates hormones which influence the bloodstream in both the digestive and the urinary system. In this case, the digestive system will absorb more liquids from food because the hormones will make the blood vessels in the digestive area larger, and on the other hand, we will produce less urine because the kidneys will get an assignment from the brain to filter liquids, but to reabsorb them again as much as possible.
It's the endocrine system. The endocrine system deals with hormones and glands, such as the pituary gland. Hope this helps!
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From the photographs presented, investigation reveals that the gender and age of the victim are:
- Age: Elderly, at least 40 years old;
- Gender; Female. This is clear from the hip and the shoe type discovered as the scene.
<h3>What is the preliminary hypothesis on the cause and manner of death?</h3>
The hypothesis or cause of death is a gun shot to the head. This is evidenced by the exhibit 23 - a bullet shell and the hole in the skull of the victim.
The databases that can help with these kind of investigations are:
- The Crime Database
- The Police Database.
Learn more about investigations at:
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1. The correct answer is option (B) Component 3 and 4 only. The difference between the plant cell and an animal cell is the presence of the cell wall and the plastids called the chloroplasts in the plant cells. Cytoplasm is the jelly like substance present in both the plant cells and animal cells. Nucleus is the brain of the cell regulating the metabolic activities of the plant and animal cell. Cell membrane is the semi-permeable membrane covering all the cells.
2. The correct answer is option (D) Biomagnification leads to higher toxicity in tuna. Biomagnification is the accumulation of toxic substances at different tropic levels of the food chain. Fishes are a target of biomagnification due to the intake of the methyl mercury in them.
3. The correct answer is option (B) 1. Prokaryotic cells 2. Eukaryotic cells. The image 1 is a prokaryotic cell and the image 2 is a eukaryotic cell. Prokaryotes are the cells with primitive nucleus. They do not have a well-defined nucleus and the membrane bound organelles. Eukaryotes are the cells with a well-defined nucleus and all the membrane bound organelles.
