LSUE BIOLOGY 1001 MIDTERM EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED SOLUTIONS) | GRADED A+ | BRAND NEW 2026/2027 VERSION | 100% ACCURATE | GUARANTEED PASS.

LSUE BIOLOGY 1001 MIDTERM EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED SOLUTIONS) | GRADED A+ | BRAND NEW 2026/2027 VERSION | 100% ACCURATE | GUARANTEED PASS. The primary source of energy for hydrothermal vent communities is A) the heat of the water emerging from the vents B) oxidation of petroleum compounds in the vent water C) oxidation of hydrogen sulfide in the vent water D) reduction of carbon dioxide in the vent water C) oxidation of hydrogen sulfide in the vent water The immediate results of the widespread use of pesticides and fertilizers included____, but long term results included_____. A) dramatic increases in crow yields...the evolution of pest resistance B) global declines in undesirable pests, such as mice, rats, crows, and sharks...increases in these pests C) the increased spread of malaria....delayed resistance to pesticides D) terrible declines in agricultural productivity....world wide distraction of DDT E) all of the choices are correct A) dramatic increases in crop yields...the evolution of pest resistance Which of the following is a characteristic of the chaparral biome? A) dense, broadleaf shrubs B) low amounts of rainfall at unpredictable periods throughout the year C) many plants with seeds that need fire to germinate D) animal species limited to lizards and snakes C) many plants with seeds that need fire to germinate Which of the following environmental factors usually has the greatest direct effect on an organism's rate of water loss by evaporation? A) Soil type B) Wind C) Fires, hurricanes, and tornadoes D)Barometric pressure B) Wind Rachel Carson's book, Silent Spring, deals with the A) All of the choices are correct B) Environmental effects of pesticides C) Effects of lynx predations on snow hare populations D) Destruction of polar habitats caused by global warming E) Fate of tropical rain forests B) Environmental effects of pesticides The adaptations of pronghorns A) All of the choices are correct B) To open country could be a disadvantage in a densely forested environment C) Included a reflective coat, an inability to find small pools of water, and chemical defenses against most predators D)To open plains and shrub deserts of North America have helped them spread to nearly every continent E) Demonstrate that meeting the demands of local environmental conditions helps organisms extend their ranges to other types of environments B) To open country could be a disadvantage in a densely forested environment Which of the following statements about temperate broadleaf forests is true? A) Temperate broadleaf forests have a narrow range of temperatures over the course of a year B) Oak, hickory, birch, beech, and maple are common trees in temperate broadleaf forests C) Temperature broadleaf forests have very poor soil D) Temperate broadleaf forests are less open than tropical rain forests B) Oak, hickory, birch, beech, and maple are common trees in temperate broadleaf forests The largest estuary in the United Staes is the Chesapeake Bay, which extends through six states, including Maryland, Virginia, and Pennsylvania. The bay is one of the most productive natural areas in the world. It is home to thousands of plants and animals, including many commercially important species. The water of the bay is relatively shallow. Many areas are no more than 10 feet deep, with an average depth of 30 feet. Light penetrates the shallow water and supports the submerged plants that provide food and shelter for the many species living in the bay ecosystem. However, like many estuaries, the bay receives large amounts of fertilizer runoff form farms, lawns, and wastewater treatment facilities. Fertilizer runoff contains______, which are the most important limiting factors for phytoplankton growth. A) carbon and hydrogen B) oxygen and carbon dioxide C) nitrogen and phosphorus D)sulfur and magnesium C) nitrogen and phosphorus The major reason for tropical deforestation is A) hurricane destruction of large regions B) people clearing forests to open up land for agriculture C) governments clearing forests to build cities D) natural succession as global warming occurs B) people clearing forests to open up land for agriculture Species in widely separated biomes often appear to display similar characteristics because of A) convergent evolution B) coevolution C) mutations D) evolutionary drift E) speciation A) convergent evolution Shrublands in California, United States are called_____. A) Savanna B) Chaparral C) Prairie D)Brushes E) Bushes B) Chaparral Treeless biomes are treeless primarily because A) there is a