Question: Digestion begins in the mouth with the secretion of saliva and its digestive enzymes. Food is formed into a bolus by the mechanical mastication and swallowed into the esophagus from where it enters the stomach through the action of peristalsis. Gastric juice contains hydrochloric acid and pepsin which would damage the walls of the stomach and mucus is secreted for protection. In the stomach further release of enzymes break down the food further and this is combined with the churning action of the stomach. The partially digested food enters the duodenum as a thick semi-liquid chyme. In the small intestine, the larger part of digestion takes place and this is helped by the secretions of bile, pancreatic juice and intestinal juice. The intestinal walls are lined with villi, and their epithelial cells is covered with numerous microvilli to improve the absorption of nutrients by increasing the surface area of the intestine.
Is there an answer to this question: Where does digestion begin?

Answer: in the mouth with the secretion of saliva and its digestive enzymes


Question: Mimicry is a related phenomenon where an organism has a similar appearance to another species. One such example is the drone fly, which looks a lot like a bee, yet is completely harmless as it cannot sting at all. Another example of batesian mimicry is the io moth, (Automeris io), which has markings on its wings that resemble an owl's eyes. When an insectivorous predator disturbs the moth, it reveals its hind wings, temporarily startling the predator and giving it time to escape. Predators may also use mimicry to lure their prey, however. Female fireflies of the genus Photuris, for example, copy the light signals of other species, thereby attracting male fireflies, which are then captured and eaten (see aggressive mimicry).
Is there an answer to this question: Why does a female firefly use the markings on its wings?

Answer: unanswerable


Question: During the 1970s to early 1990s, the term was used to describe state owned and funded technical schools that offered both vocational and higher education. They were part of the College of Advanced Education system. In the 1990s most of these merged with existing universities, or formed new ones of their own. These new universities often took the title University of Technology, for marketing rather than legal purposes. AVCC report The most prominent such university in each state founded the Australian Technology Network a few years later.
Is there an answer to this question: What system were institutes of technology a part of during the seventies, eighties, and early nineties?

Answer: College of Advanced Education system


Question: At the very end of the 19th century, a new style, with a carved top and back construction inspired by violin family instruments began to supplant the European-style bowl-back instruments in the United States. This new style is credited to mandolins designed and built by Orville Gibson, a Kalamazoo, Michigan luthier who founded the "Gibson Mandolin-Guitar Manufacturing Co., Limited" in 1902. Gibson mandolins evolved into two basic styles: the Florentine or F-style, which has a decorative scroll near the neck, two points on the lower body and usually a scroll carved into the headstock; and the A-style, which is pear shaped, has no points and usually has a simpler headstock.
Is there an answer to this question: What sytle did the new style of mandolins supplant?

Answer:
European-style bowl-back