Living Environment Review 4
Quiz by Ann Marie MacDonald
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10 questions
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- Q1Which statement best describes enzymes?The rate of activity of an enzyme might change as pH changesEnzymes are produced from the building blocks of carbohydratesTemperature changes do not affect enzymesEvery enzyme controls many different reactions30s
- Q2More energy can be released from a fat molecule than from a glucose molecule because the fat molecule contains moreorganic compoundsgenesmitochondriachemical bonds30s
- Q3People who have AIDS are more likely than others to become ill with multiple infections because the pathogen that causes AIDStargets many body systemsincreases the rate of enzyme activity in different types of body cells.damages the immune systemmutates, releasing toxins directly into the bloodstream30s
- Q4Which organism would most likely have new gene combinations?a starfish that grew from part of a starfisha bacterium resulting from asexual reproductiona hamster resulting from sexual reproductiona frog that has produced from a skin cell of a frog30s
- Q5A certain fungus can be harmful when it infects the outermost layers of the human foot, while another type of fungus can be beneficial when it recycles nutrients by breaking down dead organisms. Which terms identify these two roles of fungi?host, autotrophherbivore, predatorproducer, preyparasite, decomposer30s
- Q6Shawangunk Grasslands National Wildlife Refuge has been developed from an abandoned airport to restore habitat for six species of birds that require an area rich in tall grasses. Workers must continually remove trees that are beginning to invade the area as a result ofdirect harvestinggenetic engineeringecological successionevolutionary change30s
- Q7In order for an ecosystem to remain stable there must begradual changes in the climatedrastic modifications to the environmentinterrelationships and interdependencies among organismslimited biodiversity30s
- Q8Which occurrence most likely led to the other three?Approximately 6,500 gallons of oil were spilled into a river in Illinois after a pipeline brokeAt one time, rain forests covered 14 percent of Earth and today they cover only 6 percentHuman population growth reached 6.8 billion in 2010 and it continues to increaseThe number of African elephants has declined from 1.2 million in 1979 to about 20,000 today30s
- Q9A community is trying to decide on the location for a new shopping center. Two possible locations have been proposed, with each location having some benefits and some problems. The proper approach to deciding the best location would be tocompare the problems, but not the benefits.compare the trade-offs of building at either locationselect the site that would be the least expensive to developselect the site that could hold the most stores30s
- Q10Which substance can enter a cell by diffusion without having to be digested?proteinstarchfatwater30s