Answer the following question given this paragraph: The metallic bonding model explains the physical properties of metals. Metals conduct electricity and heat very well because of their free-flowing electrons. As electrons enter one end of a piece of metal, an equal number of electrons flow outward from the other end. When light is shone on to the surface of a metal, its electrons absorb small amounts of energy and become excited into one of its many empty orbitals. The electrons immediately fall back down to lower energy levels and emit light. This process is responsible for the high luster of metals. Q: Why does metal conduct heat and electricity so well? Choices: - electromagnetism - free flowing photons - insulation - free flowing electrons A:
free flowing electrons
Answer the following question given this paragraph: Capillaries are the smallest type of blood vessels. They connect the smallest arteries (arterioles) and veins (venules). Exchange of substances between cells and the blood takes place across the walls of capillaries, which may be only one cell thick. Q: What is the term for the smallest blood vessels? Choices: - muscles - Aortas - arteries - capillaries A:
capillaries
Q: Answer the following question given this paragraph: Antidiuretic Hormone (ADH) Diuretics are drugs that can increase water loss by interfering with the recapture of solutes and water from the forming urine. They are often prescribed to lower blood pressure. Coffee, tea, and alcoholic beverages are familiar diuretics. ADH, a 9-amino acid peptide released by the posterior pituitary, works to do the exact opposite. It promotes the recovery of water, decreases urine volume, and maintains plasma osmolarity and blood pressure. It does so by stimulating the movement of aquaporin proteins into the apical cell membrane of principal cells of the collecting ducts to form water channels, allowing the transcellular movement of water from the lumen of the collecting duct into the interstitial space in the medulla of the kidney by osmosis. From there, it enters the vasa recta capillaries to return to the circulation. Water is attracted by the high osmotic environment of the deep kidney medulla. Q: What type of drugs can increase water loss by interfering with the recapture of solutes and water from the forming urine? Choices: - sedatives - disassociates - hallucinogens - diuretics A:
A: diuretics
Question: Answer the following question given this paragraph: Hydrocarbons may form straight chains, branched chains, or rings. Ring-shaped hydrocarbons are called cyclic hydrocarbons. Q: What are ring-shaped hydrocarbons called? Choices: - reverse hydrocarbons - curved hydrocarbons - cylindrical hydrocarbons - cyclic hydrocarbons A:
Answer: cyclic hydrocarbons
*Question*
Answer the following question given this paragraph: Microwave ovens operate by emitting microwave radiation, which is primarily absorbed by water molecules in food. The absorbed radiation is converted to heat through rapid oscillations of polar water molecules, 28. Q: Microwave ovens use radiation to provide food with what kind of energy? Choices: - magnetic - vibrational - mechanical - heat A:
**Answer**
heat
Answer the following question given this paragraph: Competition is a relationship between living things that depend on the same resources. The resources may be food, water, or anything else they both need. Competition occurs whenever they both try to get the same resources in the same place and at the same time. The two organisms are likely to come into conflict, and the organism with better adaptations may win out over the other organism. Q: What is a relationship between living things that depend on the same resources? Choices: - parasitic - symbiotic - contention - competition A:
competition