Answer the following question given this paragraph: All eukaryotic cells have a nucleus and other organelles. Each organelle has a special job to do. Q: Along with other organelles, all eukaryotic cells possess what structure? Choices: - chromosomes - cell walls - flagella - nucleus A:
nucleus
(Question)
Answer the following question given this paragraph: Other applications of carbonates include glass makingwhere carbonate ions serve as a source of oxide ionsand synthesis of oxides. Hydrogen carbonates are amphoteric because they act as both weak acids and weak bases. Hydrogen carbonate ions act as acids and react with solutions of soluble hydroxides to form a carbonate and water: KHCO 3(aq) + KOH(aq) K 2 CO 3(aq) + H 2 O(l) With acids, hydrogen carbonates form a salt, carbon dioxide, and water. Baking soda (bicarbonate of soda or sodium bicarbonate) is sodium hydrogen carbonate. Baking powder contains baking soda and a solid acid such as potassium hydrogen tartrate (cream of tartar), KHC4H4O6. As long as the powder is dry, no reaction occurs; immediately after the addition of water, the acid reacts with the hydrogen carbonate ions to form carbon dioxide: HC 4 H 4 O 6 (aq) + HCO 3 (aq) C 4 H 4 O 6 2(aq) + CO 2(g) + H 2 O(l) Dough will trap the carbon dioxide, causing it to expand during baking, producing the characteristic texture of baked goods. Q: Substances that act as both weak acids and bases are said to be what? Choices: - amphiphilic - hygroscopic - atmospheric - amphoteric A:
(Answer)
amphoteric
Ques: Answer the following question given this paragraph: Equinox comes halfway between the two solstices. At equinoxes, the Sun's rays shine most directly at the Equator ( Figure below ). The daylight and nighttime hours are exactly equal on an equinox. The autumnal, or fall, equinox happens on September 22 or 23. The vernal, or spring, equinox happens March 21 or 22 in the Northern Hemisphere. Q: What event occurs between the two solstices? Choices: - Christmas - summer - Leap Year - equinox A:
Ans: equinox
(Q).
Answer the following question given this paragraph: Q: White light is a mixture of all wavelengths of what? Choices: - gamma radiation - infrared radiation - x-rays - visible light A:
(A).
visible light
Ques:Answer the following question given this paragraph: Lipid Digestion A healthy diet limits lipid intake to 35 percent of total calorie intake. The most common dietary lipids are triglycerides, which are made up of a glycerol molecule bound to three fatty acid chains. Small amounts of dietary cholesterol and phospholipids are also consumed. The three lipases responsible for lipid digestion are lingual lipase, gastric lipase, and pancreatic lipase. However, because the pancreas is the only consequential source of lipase, virtually all lipid digestion occurs in the small intestine. Pancreatic lipase breaks down each triglyceride into two free fatty acids and a monoglyceride. The fatty acids include both short-chain (less than 10 to 12 carbons) and long-chain fatty acids. Q: What are the most common dietary lipids? Choices: - phospholipids - diglycerides - monoglycerides - triglycerides A:

Ans:triglycerides
Answer the following question given this paragraph: Water is recycled through the water cycle. The water cycle is the movement of water through the oceans, atmosphere, land, and living things. The water cycle is powered by energy from the Sun. Figure below diagrams the water cycle. Q: The water cycle is powered by energy from where? Choices: - atmosphere - earth - living things - sun A:
sun