Biology 5236 Practice Questions with Verified Solutions

Biology 5236 Practice Questions with Verified Solutions Which of the following terms indicates the ecological role that an organism plays in a community? Niche Which of the following characteristics distinguishes members of the domain Eukarya from members of the domains Archaea and Bacteria? The presence of a nuclear envelope Valine is typically classified as a hydrophobic amino acid because a valine molecule has which of the following types of side chains? Nonpolar A teacher asks students to describe how the data collected in an experiment are typically used as evidence. Which of the following responses is the most accurate? "The data are used to support or reject a hypothesis." Which of the following biomes is characterized by long winters and short summers, snow as the predominant form of precipitation, soil that is acidic and poor in nutrients, and wooded areas made up mostly of evergreen trees with needlelike leaves? Boreal forest One strand of a certain segment of DNA has the following nucleotide sequence. 5 prime, A G A T G T C C A G T A, 3 prime5′−AGATGTCCAGTA−3′5′-AGATGTCCAGTA-3′ The complementary strand in the same segment of DNA most likely has which of the following nucleotide sequences? 3-'TCTACAGGTCAT-5' The overall process of aerobic cellular respiration is best described as the oxidation of glucose to produce carbon dioxide and the reduction of oxygen to produce which of the following? Water A student uses stationary fans to investigate the effect of wind on water loss by plants. The student divides the plants into three treatment groups and places each group in front of a fan. The student sets the fan for each group to one of three different levels: low, medium, or high. After 24 hours, the student determines the amount of water that was lost by each plant. To create a bar graph of the results, the student should make the height of each bar represent which of the following? The average water loss for each treatment group Interphase is the part of the cell cycle that includes which of the following? Replication of DNA A model of secondary succession typically includes which of the following? Changes in species composition over time Which TWO of the following are typically present in a bacterial cell but not in a virus? Ribosomes and DNA Wind turbines are used for which of the following activities? Generating electricity without burning fossil fuels The nucleotides of a single strand of DNA are linked together by which of the following? Phosphodiester Bonds Which of the following pathways is common to both fermentation and aerobic cellular respiration? Glycolosis In a germinating seedling, the root grows downward into the soil. Which of the following correctly explains this phenomenon? The root exhibits positive gravitropism. Which of the following best describes the role of transpiration in the water cycle? It moves water from the soil to the atmosphere. In which of the following cell types is a mutation most likely to have an impact on the gene pool of a population? Sperm Which of the following actions will best help maintain the diversity and abundance of organisms in a terrestrial ecosystem? Preventing habitat destruction A population of a certain animal species is found in a protected wildlife preserve. Which of the following poses the greatest threat to the long-term survival of the population? Which of the following describes the primary