Bio 201 Exam 2 Version 0

Bio 201 Exam 2 Version 0 - MARCH 30, 2011 BIO 201 MIDTERM...

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MARCH 30, 2011 BIO 201 – MIDTERM EXAMINATION 2 – SPRING 2011 Fill in your SCANTRON sheet as directed below. Do not forget to blacken the circles . ON YOUR SCANTRON: Enter your NAME at the top, last name first DO NOT FILL IN YOUR BIRTHDATE Enter your STONY BROOK ID# in the LOWER LEFT CORNER In the WHITE MARGIN of the TOP LEFT , print the FIRST TWO WORDS of QUESTION #1 In the WHITE MARGIN of the TOP RIGHT, SIGN YOUR NAME DO NOT MARK ANY OTHER SPACES (except answers) ON THE SCANTRON POINTS There are 8 PAGES ( not including this cover page) WITH 35 EXAM QUESTIONS plus 3 BONUS QUESTIONS and there is only ONE BEST ANSWER to each question ! Each correct answer of this exam will count 1 point. Choose the B EST answer and ANSWER EVERY QUESTION . PENCIL Please use only a soft # 2 pencil . CHECK Make SURE you have ALL 8 PAGES and ALL 38 QUESTIONS! ANSWERS YOU MAY MARK YOUR ANSWERS IN THIS TEST BOOKLET so you can check the key. You may take this test booklet with you. BE SURE TO TURN IN THE COMPLETED SCANTRON BEFORE YOU LEAVE. The SCANTRONS will not be returned.
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BIO 201 Midterm 2 SPRING 2011 Page 1 of 8 Choose the most correct answer. 1. When a limiting resource is available to, and exploited by, at least two different species, the presence of one species lowers the fitness of another. This type of __________ interaction is known as ________ competition. a) interspecific, interference b) interspecific; exploitative c) intraspecific; exploitative d) intraspecific; interference e) parasitic; indirect 2. The relationship between plant roots and fungi a) Is a ribosomal association b) Is deleterious to the plant c) Decreases phosphate uptake d) Is important for the plant to access carbon and photosynthesize e) Increases the functional surface area of the plant roots 3. Approximately ____ percent of energy from one trophic level is transferred to the next. a) 100 b) 80 c) 50 d) 25 e) 10 4. Species that coexist and interact within a defined area constitute a(n): a) community b) population c) ecology d) intraspecific cohort e) symbiosis 5. A measure of species diversity within a given habitat is known as: a) alpha diversity b) beta diversity c) relative abundance d) gamma diversity e) species richness 6. All the plants that can be occupied under certain environmental conditions by an aphid species is its ______ niche, while the limited number of plants occupied by aphids because of the presence of another species on the other plants is its ______ niche. a) realized; fundamental b) Hutchinson's; actual c) fundamental; realized d) idealized; realized e) natural; competitive exclusion
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BIO 201 Midterm 2 SPRING 2011 Page 2 of 8 7. Keystone species a) are always predators b) control the abiotic conditions of a given habitat c) are primary producers d) have an impact on their community that is disproportionate to their relative biomass e) do not influence community composition or species richness and abundance 8. Phytoremediation
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Bio 201 Exam 2 Version 0 - MARCH 30, 2011 BIO 201 MIDTERM...

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