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- 4..please help..You said that "Exposure to an extremely salty environment, on the other hand, could potentially harm them by disrupting their internal environment and causing dehydration or an ion imbalance." I can't seem to find this anywhere do you have a research paper or source to show this? Thanks for your time and help I appreiate it9. The diagram below represents a magnified cross section of human skin. The skin is an organ in the human excretory system. What is one way the release of sweat allows the skin to function as part of the human excretory system? * Human Skin Pore Sweat gland Sweating helps keep in excess heat from the body O Sweating doesn't help the body Sweating removes extra fluids (ex. water) from the body
- (30. While conducting research on Euglena, a researcher observed that the contractile vacuole ceased functioning yet the rest of the organism seemed healthy and active. Which of the following is MOST likely responsible for the cessation of contractile vacuole action? A. Moving the Euglena from a lighted to darkened environment. B. Moving the Euglena from a freshwater to a seawater environment. C. Moving the Euglena 1om a seawater to a freshwater environment. D. Lowering the pH of the medium from 7.0 to 6.5. E. Lowering the temperature of the medium from 20°C to 15°C.1.How does the hypothalamus react to the body getting too hot? Choose more than 1 answer. A. causes the blood vessels to vasodilate B. causes the blood vessels to vasoconstrict C. causes the body to shiver D. stimulate sweat glands 2. In which system is osmolarity significant? endocrine system immune system nervous system urinary system 3. If acidity of the blood is well below a pH of 7 what is secreted in the urine? A. H20 B. H2CO3 C. H+ D. HCO39. Cyanide poisoning can occur from breathing smoke in a house fire or exposure to certain chemicals, like those used in metal polishes or insecticides. One sign of cyanide poisoning is muscle weakness. Another sign of cyanide poisoning is a cherry red skin color, resulting from an increased amount of oxygen-carrying hemoglobin in the veins. Normally, oxygen cycles into the cells from the hemoglobin in the arteries, so as hemoglobin moves to the veins it is usually deoxygenated. a. Which molecule do you think the body is running low on to cause muscle weakness? Explain your answer. b. What aspect of ATP synthesis might cyanide be interfering with to cause oxygen needs of the cell to decrease?
- 4. Drugs such as nifedipine slow the heart rate. Nifedipine can be described as what type of drug? 5. Nitrates, such as nitroglycerin, have what mechanism of action? Based on this mechanism of action, when would a nitrate be contraindicated?2. Provide an explanation for the observed behavioral responses of fish to temperature changes. In general, what are the physiological effects of temperature changes on living organisms?12. Explain asap
- 1. Why is the red blood cell number in males more than in females? Is there a difference between white blood cell number in males and females? 2. Under what conditions would sugar appear in the urine of a healthy individual? 3. Why will sulfur float if bile salts are present in urine?5. A drug is infused intravenously (IV) for treatment of a particular disease. The infusion rate of the drug is ko = 200 mg/hr. The volume of the body fluid V = 16 liters. The drug is excreted (removed) through the kidneys at rate ke = 0.3/hr, proportional to the concentration of the drug in the body fluids. How much is the maximum concentration of the drug in the body in the steady state in mg/l?17. Muscle. Contractions which move the body depend heavily on diffusion. Why do we have difficulty moving our fingers etc. when they are cold ?