Answer the following question given this paragraph: Absorption The mechanical and digestive processes have one goal: to convert food into molecules small enough to be absorbed by the epithelial cells of the intestinal villi. The absorptive capacity of the alimentary canal is almost endless. Each day, the alimentary canal processes up to 10 liters of food, liquids, and GI secretions, yet less than one liter enters the large intestine. Almost all ingested food, 80 percent of electrolytes, and 90 percent of water are absorbed in the small intestine. Although the entire small intestine is involved in the absorption of water and lipids, most absorption of carbohydrates and proteins occurs in the jejunum. Notably, bile salts and vitamin B12 are absorbed in the terminal ileum. By the time chyme passes from the ileum into the large intestine, it is essentially indigestible food residue (mainly plant fibers like cellulose), some water, and millions of bacteria (Figure 23.32). Q: The mechanical and digestive processes have one goal: to convert food into molecules small enough to be absorbed by the epithelial cells of what? Choices: - bile ducts - stomach cilia - alveoli - intestinal villi A:
intestinal villi
(Question)
Answer the following question given this paragraph: Diamond is a network solid and consists of carbon atoms covalently bonded to one another in a repeating three-dimensional pattern. Each carbon atom makes four single covalent bonds in a tetrahedral geometry. Q: What is a network solid and consists of carbon atoms covalently bonded to one another in a repeating three-dimensional pattern? Choices: - a zirconium - a ruby - an agate - a diamond A:
(Answer)
a diamond
Ques: Answer the following question given this paragraph: Pectin, a carbohydrate from fruit juices, is a gel-forming substance important in jelly making. Silica gel, a colloidal dispersion of hydrated silicon dioxide, is formed when dilute hydrochloric acid is added to a dilute solution of sodium silicate. Canned Heat is a gel made by mixing alcohol and a saturated aqueous solution of calcium acetate. Q: What carbohydrate from fruit juices is a gel-forming substance important in jelly making? Choices: - potassium - gelatin - cellulose - pectin A:
Ans: pectin
(Q).
Answer the following question given this paragraph: You can follow the operation of an electricity-generating fission reactor in the image above. The reactor core is submerged in a pool of water. The heat from the fission reaction heats the water, which is pumped into a heat exchange container. There the heated water boils the water in the heat exchanger. The produced steam is forced through a turbine that spins a generator and produces electricity. After the water passes through the turbine, it is condensed back to liquid water and pumped back to the heat exchanger. Q: A turbine that spins a generator will produce? Choices: - solar energy - light - magnetic fields - electricity A:
(A).
electricity
Ques:Answer the following question given this paragraph: Evolution occurs in a population when its allele frequencies change over time. For example, the frequency of the A allele might change from 0.7 to 0.8. If that happens, evolution has occurred. What causes allele frequencies to change? The answer is forces of evolution. Q: What occurs in a population when its allele frequencies change over time? Choices: - variation - generation - extinction - evolution A:

Ans:evolution
Answer the following question given this paragraph: Magnetite naturally attracts iron nails and filings. Its natural magnetism was discovered thousands of years ago. Q: What are magnetites naturally attracted to? Choices: - stone - aluminum - glass - iron A:
iron