What is a monophyletic group of organisms? What is the limiting nutrient for the grassland ecosystem? How are species defined according to the biological species concept?

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Final Exam. BIO 182 Name:______________________ August 9, 2016 Choose the best answer for each question. Questions 1 – 60 are for credit; 61 – 64 are extra credit. 1. What is a monophyletic group of organisms? a. a group that includes a common ancestor and all of its descendants b. a group that includes a common ancestor but not all of its descendants c. a group that does not include a common ancestor d. a group of organisms that have the same ecological niche e. organisms that have a haploid life cycle 2. An ecologist is studying the productivity of grassland ecosystems in northwestern Arizona. The ecologist divides a hectare plot into one hundred equal square p