bio review Q - 1 A certain species of pine tree survives...

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1. A certain species of pine tree survives only in scattered locations at elevations above 28080 m in the western United States. To understand why this tee grows only in the se specific places an ecologist should? a. 2. If Earth’s axis of rotation suddenly became perpendicular to the plane of its orbit, the most predictable effect would be ? a. The loss of season variation. Pg 1156 3. Where would an ecologist find the most phytoplankton in a lake? a. The photic zone of a lake. Pg 1160 fig. 52.16 4. Trees are not usually found in the tundra biome because of ? a. A permanently frozen layer of soil called perma-frost restrict the growth of plant roots. Pg 1171 5. Which of the following organisms is the most likely candidate for geographic isolation? a. 6. The Benthic zone in an aquatic biome…? a. The benthic zone is the bottom of all aquatic biomes and consists of substrates made up of sand and organic and inorganic sediments occupied by communities of organisms collectively called the benthos. Benthic species food source is dead organic matter called detritus which rains down from the productive surface waters of the photic zone. Pg 1161 7. How does the foraging of animals on tree seeds affect the distribution and abundance of the trees? a. 8. Ecology as a discipline directly deals with all of the following levels of biological organization except?. . a. Cellular biology 9. Which of the following areas of study focuses on the exchange of energy, organisms, and materials between ecosystems? a. Ecosystem ecology is the study of the study of energy flow and chemical cycling between organisms and their environment. Pg 1149 # 4 10. Which of the following events might you predict to occur if the tilt of Earth’s axis relative to its plane of orbit was increased 33.5 degrees? a. Summers and winters in the United States would likely become warmer and colder respectively. Pg1156 Question wrk sheet #52 11. As climate changes because of global warming, species ranges in the northern hemisphere may move northward, The trees that are most likely to avoid extinction in such an environment are those that… a. 12. Which of the following statements about the ocean’s pelagic biome is true? a. The ocean’s pelagic zone is a vast realm of open blue water, constantly mixed by wind driven oceanic currents. Because of higher water clarity the photic zone extends to greater depths than in costal marine waters. O levels are generally high nutrient concentration are lower then in costal waters because they are thermally stratified year round. Some tropical
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areas of the oceanic pelagic zone have lower nutrient concentrations then temperate oceans. Turn over between fall and spring renews nutrients in the photic zones of temperate and high latitude ocean areas. Pg 1164 13. How would an ecologist likely explain the expansion of the cattle egret? a.
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This note was uploaded on 05/04/2010 for the course BIO 1010 taught by Professor Rath during the Spring '10 term at Campbell University .

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bio review Q - 1 A certain species of pine tree survives...

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