Answer the following question given this paragraph: An apple contains about 20 grams of carbohydrates. How much energy does it provide?. Q: About how many grams of carbohydrates are in a typical apple? Choices: - 30 - 35 - 25 - 20 A:
20
Answer the following question given this paragraph: Transparent matter is matter that transmits light without scattering it. Examples of transparent matter include air, pure water, and clear glass. You can see clearly through transparent objects, such as the top panes of the window below , because just about all of the light that strikes them passes through to the other side. Q: What type of matter transmits light without scattering it? Choices: - opaque - smooth - reflective - transparent A:
transparent
Q: Answer the following question given this paragraph: Dilution of the products with water, followed by filtration to remove calcium sulfate, gives a dilute acid solution contaminated with calcium dihydrogen phosphate, Ca(H2PO4)2, and other compounds associated with calcium phosphate rock. It is possible to prepare pure orthophosphoric acid by dissolving P4O10 in water. The action of water on P4O6, PCl3, PBr3, or PI3 forms phosphorous acid, H3PO3 (shown in Figure 18.53). The best method for preparing pure phosphorous acid is by hydrolyzing phosphorus trichloride: PCl 3(l) + 3H 2 O(l) H 3 PO 3(aq) + 3HCl(g) Heating the resulting solution expels the hydrogen chloride and leads to the evaporation of water. When sufficient water evaporates, white crystals of phosphorous acid will appear upon cooling. The crystals are deliquescent, very soluble in water, and have an odor like that of garlic. The solid melts at 70.1 C and decomposes at about 200 C by disproportionation into phosphine and orthophosphoric acid: 4H 3 PO 3(l) PH 3(g) + 3H 3 PO 4(l). Q: The best method for preparing pure phosphorous acid is by hydrolyzing what? Choices: - dioxide trichloride - carbon trichloride - dioxide phosphat - phosphorus trichloride A:
A: phosphorus trichloride
Question: Answer the following question given this paragraph: Artificial Methods of Asexual Reproduction These methods are frequently employed to give rise to new, and sometimes novel, plants. They include grafting, cutting, layering, and micropropagation. Grafting Grafting has long been used to produce novel varieties of roses, citrus species, and other plants. In grafting, two plant species are used; part of the stem of the desirable plant is grafted onto a rooted plant called the stock. The part that is grafted or attached is called the scion. Both are cut at an oblique angle (any angle other than a right angle), placed in close contact with each other, and are then held together Figure 32.26. Matching up these two surfaces as closely as possible is extremely important because these will be holding the plant together. The vascular systems of the two plants grow and fuse, forming a graft. After a period of time, the scion starts producing shoots, and eventually starts bearing flowers and fruits. Grafting is widely used in viticulture (grape growing) and the citrus industry. Scions capable of producing a particular fruit variety are grated onto root stock with specific resistance to disease. Q: During grafting, the part of the plant that is grafted is called? Choices: - roots - stock - stem - scion A:
Answer: scion
*Question*
Answer the following question given this paragraph: Humans have collected and grown mushrooms for food for thousands of years. Figure below shows some of the many types of mushrooms that people eat. Yeasts are used in bread baking and brewing alcoholic beverages. Other fungi are used in fermenting a wide variety of foods, including soy sauce, tempeh, and cheeses. Blue cheese has its distinctive appearance and flavor because of the fungus growing though it (see Figure below ). Q: What grows through blue cheese that gives it the distinctive appearance and flavor? Choices: - Viruses - Roots - Bacteria - fungus A:
**Answer**
fungus
Answer the following question given this paragraph: Genital herpes is a common STI caused by a herpes virus. The virus causes painful blisters on the penis or near the vaginal opening. The blisters generally go away on their own, but they may return repeatedly throughout life. There is no cure for genital herpes, but medicines can help prevent or shorten outbreaks. Q: What type of sti is characterized by blisters? Choices: - syphilis - gonorrhea - chlamydia - genital herpes A:
genital herpes