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
Answer the following question given this paragraph: DNA encodes instructions for proteins. RNA copies the genetic code in DNA and carries it to a ribosome. There, amino acids are joined together in the correct sequence to make a protein. Q: Dna encodes instructions for what kind of molecules? Choices: - acids - cells - fats - proteins A:
proteins
Q: Answer the following question given this paragraph: Pipettes are small, but important tools in many biology labs. Micropipettes, such as the ones shown here, are calibrated to measure very small amounts of liquids. For example, 100 microliters (100 L) is about half the volume of your little finger tip; or even 1 L, which is much smaller than a drop of water. Q: What kind of pipettes are suitable for measuring very small amounts of liquids? Choices: - clutch pipettes - macropipettes - frozen pipettes - micropipettes A:
A: micropipettes
Question: Answer the following question given this paragraph: Figure 24.8 Fungi may have both asexual and sexual stages of reproduction. Q: Fungi may have both asexual and sexual stages of what? Choices: - absorption - development - photosynthesis - reproduction A:
Answer: reproduction
*Question*
Answer the following question given this paragraph: Average velocity is displacement divided by time. Q: Displacement divided by time is equal to the average what? Choices: - force - speed - acceleration - velocity A:
**Answer**
velocity
Answer the following question given this paragraph: series of stages a sexually reproducing organism goes through from one generation to the next. Q: What happens to the core of a star when it begins to run low on hydrogen? Choices: - it expands - it disappears - it explodes - it contracts A:
it contracts