Answer the following question given this paragraph: Hair and nails are made of keratin, a tough protein. Q: Hair and nails are made of what? Choices: - chromatin - proteins - cellulose - keratin A:
keratin
Answer the following question given this paragraph: linked to a lower incidence of certain diseases. Thus, there have been an increasing number of recommendations by government bodies and health associations to decrease the proportion of saturated fat and increase the proportion of unsaturated fat in the diet. Most of these organizations also recommend decreasing the total amount of fat in the diet. Recently, certain fats called trans fats have been implicated in the presence of heart disease. These are fats from animal sources and are also produced when liquid oils are exposed to partial hydrogenation, an industrial process that increases their saturation. Trans fats are used in many prepared and fried foods. Because they bring with them the health risks that naturally occurring saturated fats do, there has been some effort to better quantify the presence of trans fats in food products. US law now requires that food labels list the amount of trans fat in each serving. Since 1992, the US Department of Agriculture has been promoting a food pyramid that gives a simple, visual picture of how much of what kind of foods make up a good, balanced diet. It recommends eating as few fats as possible. Although nutritionists recognize that some fat is necessary (and largely unavoidable, even by strict vegetarians), they emphasize that a large proportion of any fat, saturated or unsaturated, in the diet is unhealthy. Even so, a difference as simple as the difference between a single and double carboncarbon bond can have a significant impact on health. Q: What kind of fats have been implicated in the presence of heart disease? Choices: - plant fats - animal fats - key fats - trans fats A:
trans fats
Q: Answer the following question given this paragraph: If the word fish makes you think of cute little goldfish in a tank, check out the anglerfish pictured in Figure below . It's also called a black sea devil. Surprisingly, goldfish and angler fish aren't all that different from each other as far as fish diversity goes. Both fish are placed in the same fish class. Clearly, fish are a diverse and interesting group of vertebrates. Q: Fish are a diverse and interesting group of organisms in what sub-phylum? Choices: - mammals - invertebrates - organelles - vertebrates A:
A: vertebrates
Question: Answer the following question given this paragraph: Reptile eggs are amniotic, so they can be laid on land instead of in water. Q: What characteristic of reptile eggs allows them to be laid on land instead of in water? Choices: - they are dry - they trap gas - they are circular - they are amniotic A:
Answer: they are amniotic
*Question*
Answer the following question given this paragraph: Q: What are microscopic vessels with very thin, porous walls? Choices: - veins - arteries - valves - capillaries A:
**Answer**
capillaries
Answer the following question given this paragraph: Soil formation requires weathering. Where there is less weathering, soils are thinner. However, soluble minerals may be present. Where there is intense weathering, soils may be thick. Minerals and nutrients would have been washed out. Soil development takes a very long time. It may take hundreds or even thousands of years to form the fertile upper layer of soil. Soil scientists estimate that in the very best soil forming conditions, soil forms at a rate of about 1mm/year. In poor conditions, it may take thousands of years!. Q: What slow process is required for formation of soil? Choices: - leaching - digestion - fossilization - weathering A:
weathering