exam2v3 - Biology 1030 Spring 2008 Exam 2 Version 3 You may...

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You may write on this test. Multiple Choice - 62 questions total, 3 points each (180 pt basis, 6 bonus points possible) Identify the letter of the choice that best completes the statement or answers the question. ____ 1. According to physiological evidence and some genetic data, which of the following has the best chance of ac- tually being a grade that would form a clade with flowering plants? A) phylum Anthophyta D) phylum Cycadophyta B) phylum Gnetophyta E) phylum Ginkgophyta C) phylum Coniferophyta ____ 2. Members of this phylum of vascular, seed-bearing plants have the largest sperm known. Many look like palm trees, but they reproduce using cones (some have female cones as nearly as heavy as many adult humans). They were a dominant plant group in the Mesozoic era. A) Anthophyta (flowering plants) D) Ginkgophyta (ginkgos) B) Coniferophyta (conifers) E) Cycadophyta (cycads) C) Gnetophyta (gnetophytes) ____ 3. Most members of this phylum of coelomate protostomes have their coelom divided by septa. They use fluid in their coelom as a hydrostatic skeleton. Some marine members have trochophore larvae. A) Annelida (segmented worms) D) Chaetognatha (arrow worms) B) Rotifera (rotifers) E) Nermetea (ribbon worms) C) Platyhelminthes (flatworms) ____ 4. This phylum of vascular, seed-bearing plants has only about 70 living species in three genera, including Wel- witschia and Ephedra . They are the only gymnosperms with xylem containing vessels, a trait common in an- giosperms. A) Cycadophyta (cycads) D) Pterophyta (ferns) B) Gnetophyta (gnetophytes) E) Ginkgophyta (ginkgos) C) Coniferophyta (conifers) ____ 5. This phylum of acoelomate animals has three classes, two of which consist of organisms that are exclusively parasitic. Members of this phylum have an excretory system consisting of small tubules lined with ciliated flame cells. Not all have a digestive tract; in those that do, it is incomplete, with one opening that is both the mouth and anus. A) Nermetea (ribbon worms) D) Rotifera (rotifers) B) Annelida (segmented worms) E) Chaetognatha (arrow worms) C) Platyhelminthes (flatworms) ____ 6. Seed plants: A) are homosporous in some species and heterosporous in others B) are always heterosporous C) are always homosporous as gametophyes and heterosporous as sporophytes D) are always heterosporous as gametophytes and homosporous as sporophytes E) are always homosporous ____ 7. Some flowering plants will self-pollinate and self-fertilize, the most extreme form of inbreeding. What is the major disadvantage of this lifestyle for such plants? A) The lack of vectors for pollination leads to social isolation. B) Offspring generally are stuck with a greater genetic load of bad mutations. C)
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This test prep was uploaded on 04/17/2008 for the course BIOL 1031 taught by Professor Bowling during the Spring '08 term at Auburn University.

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exam2v3 - Biology 1030 Spring 2008 Exam 2 Version 3 You may...

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