Organismal Biology - Final 2008 Multiple Choice Answers

Organismal Biology - Final 2008 Multiple Choice Answers -...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: BIO 1130MM - Final Examination – December 15, 2008 Part A - Multiple choice questions - Place your answers on the answer sheet BIO 1130MM An introduction to Organismal biology Final examination Worth either 35% of your final grade Monday 9:30 am, December 15, 2008 Part A: Multiple choice questions 38 points (1 point/question) a) Fill in the bubbles for your name and student number and BIO1130MM for the course code. Fill in the same information in text in the boxes above the bubbles. b) Use only a pencil to fill in the bubbles on the answer sheet with your answers to each multiple choice question. If you erase a bubble be sure to erase all of the pencil mark. Don’t place any marks anywhere on the sheet other than where the bubbles are for personal information or your answers. c) Do not place any answers on the question sheets – they are discarded. d) This is not an open book exam. e) CAUTION to minimize paper waste this part of the exam has been printed back to back NOTE: If you do not fill in the student number and course code as BIO1130MM it will be impossible to identify your answer sheet and you will receive a ZERO for this part of the exam Page 1 of 8 BIO 1130MM - Final Examination – December 15, 2008 Part A - Multiple choice questions - Place your answers on the answer sheet 1. To colonize, land plants had to overcome a number of difficulties. However, once this occurred they were able to exploit more abundant resources. Which of the following resources are more plentiful on land than in water? A) nitrogen B) light X C) water D) carbon dioxide 2. Which one of these mollusc groups can be classified as suspension feeders? A) cephalopods X B) bivalves C) chitons D) gastropods 3. The presence of a lophophore in a newly discovered species would suggest which of the following? A) This species grows by shedding its cuticle. B) This species is probably an arthropod. X C) This species is a suspension feeder. D) This species grows by shedding its exoskeleton. 4. An important fossil fuel is coal, much of which was formed when ________. A) northern-latitude bogs accumulated peat. X B) extensive forests of seedless vascular plants were buried and compressed. C) huge gymnosperms were flooded by an inland sea. D) ancient angiosperms got buried under volcanic ash. E) All of these answers apply. 5. Fungi are most closely related to which of these groups? X A) animals B) green algae C) plants D) red algae 6. The major evolutionary split of protostome animals was into ________. A) Arthropods and molluscs. X B) lophotrochozoans and ecdysozoans. C) diploblasts and triploblasts. D) segmented and nonsegmented animals. E) Coelomates and acoelomates. 7. Which of the following characteristics evolved independently in mammals and birds? A) bilateral symmetry X B) endothermy C) jaws D) amniotic eggs E) bone Page 2 of 8 BIO 1130MM - Final Examination – December 15, 2008 Part A - Multiple choice questions - Place your answers on the answer sheet 8. This large “super” continent straddled the globe from the North to South Pole during the Triassic period. a) Gonwanda b) Euramerica c) Pangea X d) Amerafrica 9. Which feeding tactic is most associated with a large-toothed, predatory carnivore? A) suspension feeder X B) food-mass feeder C) deposit feeder D) fluid feeder 10. Ostracoderms, placoderms and ray-finned bony fish colonize the oceans in this geological period. a) Triassic b) Silurian c) Cretaceous X d) None of the above 11. The largest extinction, measured as a percentage of species that disappeared, occurred at the end of which geological period? A) Silurian X B) Permian C) Cretaceous D) Tertiary E) Devonian 12. How did the development of the jaw contribute to evolutionary diversification of early vertebrate lineages? A) It allowed for more modes of communication. B) It increased their mobility. X C) It allowed vertebrates to feed on a wider variety of food sources. D) It allowed vertebrates to grow a bony skull. E) It provided for an appreciation of a wider variety of foods. 13. Which set contains the most closely related terms? A) microsporangium, microspore, carpel, ovary X B) megasporangium, megaspore, egg, ovule C) megasporangium, megaspore, pollen, ovule D) microsporangium, microspore, egg, ovary 14. The cladistic approach to estimating phylogenetic trees is most like the approach of which species concept? X A) Phylogenetic species concept B) Morphospecies concept C) Biological species concept Page 3 of 8 BIO 1130MM - Final Examination – December 15, 2008 Part A - Multiple choice questions - Place your answers on the answer sheet 15. Which of the following statements are correct: 1) Gymnosperms first appear in the late Permian and dominate the triassic 2) The first amphibians appear in the Devonian and they undergo an adaptive radiation in the Carboniferous period 3) Coevolution of flowering plants and insects occurred during the Devonian period. 4) Synapisid reptiles dominate the start of the Jurassic period after first appearing in the late carboniferous 5) Birds begin to diversity at the end of the Cretaceous and diversity with the mammals in the Paleogene. X A) 1, 2, 5 are true B) 1, 2, 3 and 5 are true C) 4, 2 and 5 are true D) All the statements are true E) None of the statements are true 16. Which of the following statements are true about organisms that survive mass extinctions? 1) Large specialized organisms with unique geographic distributions that allow them places to hide during adverse conditions 2) Multicellular plants 3) Small, simple organisms with global distributions 4) Prokaryotes like cyanobacteria X A) 1, 2 and 4 are true B) 1, 3 and 4 are true C) Only 1 and 2 are true D) 2, 3 and 4 are true E) All the statements are true 17. Molecular phylogenies show all land plants are a monophyletic group. This suggests that ________. X A) there was a single transition from aquatic to terrestrial habitats. B) land plants have undergone a diversification since they first colonized terrestrial habitats. C) there were many different transitions from aquatic to terrestrial habitats. D) wind-pollinated plants arose first. 18. Which of the following describes the most likely order of events in speciation? A) genetic drift, genetic isolation, divergence B) divergence, genetic isolation, genetic drift C) divergence, genetic drift, genetic isolation D) genetic isolation, divergence, genetic drift X E) genetic isolation, genetic drift, divergence Page 4 of 8 BIO 1130MM - Final Examination – December 15, 2008 Part A - Multiple choice questions - Place your answers on the answer sheet 19. Applying the principle of parsimony to the trait "ability to fly," which of the two phylogenetic trees below is better? X A) Tree 1 B) Tree 2 C) Both trees are equally parsimonious. 20. Which of the following is consistent with the out-of-Africa hypothesis? A) Modern Homo sapiens can trace their origin back to Neanderthals. X B) Homo sapiens have a common ancestor with Neanderthal and Homo erectus from Africa but did not interbreed with them. C) Interbreeding between early hominin species in Europe and Asia lead to the distinctive features of modern Homo sapiens. D) Modern Homo sapiens and Neanderthals have no common ancestor more recent than the first mammals. E) Modern Homo sapiens can trace their origin back to Homo erectus. 21. Which is the most diverse group of land plants? A) pines B) gymnosperms C) angiosperms X D) ferns Page 5 of 8 BIO 1130MM - Final Examination – December 15, 2008 Part A - Multiple choice questions - Place your answers on the answer sheet 22. Which evolutionary innovation was most significant in helping tetrapods move to dry terrestrial environments? A) the lung B) the amniotic egg X C) endothermy D) bone 23. On which body segment are an insects wings attached? X A) thorax B) abdomen C) evenly split between the abdomen and thorax D) head 24. Which of these is a major trend in land plant evolution? A) the trend toward a gametophyte-dominated life cycle B) the trend toward smaller size C) the trend toward larger gametophytes X D) the trend toward a sporophyte-dominated life cycle 25. Which of the following would be useful in creating a phylogenetic tree of a taxon? A) Morphological data from fossil species B) Genetic sequences from living species C) Behavioral data from living species X D) All of the above E) None of the above 26. Spores and seeds have basically the same function - dispersal - but are vastly different because ________. A) spores have a protective outer covering; seeds do not. X B) spores are unicellular; seeds are not. C) spores have an embryo; seeds do not. D) spores have stored nutrition; seeds do not. E) spores depend primarily on animals for dispersal; seeds do not. 27) You are studying lizards in the field. The range of the northern population, species 1, overlaps the range of the southern population, species 2. You find hybrids in the zone of overlap. What is happening? A)The postzygotic isolating mechanisms aren't working. B)Reinforcement is occurring. C)Hybrids are best adapted to this region where overlap occurs. X D) There is not enough information to decide what is happening. 28. Which of the following is true of stomata? X A) Stomata open to allow gas exchange and close to decrease water loss. B) Stomata occur in all land plants and are the same as pores. C) Stomata open to increase both water absorption and gas exchange. D) Stomata occur in all land plants and define them as a monophyletic group. Page 6 of 8 BIO 1130MM - Final Examination – December 15, 2008 Part A - Multiple choice questions - Place your answers on the answer sheet 29. What is not true of all arthropods? A) They grow by molting. B) They have segmented bodies. C) They metamorphose during development. X D) They have an exoskeleton or cuticle. E) They have jointed limbs. 30. Which reproductive strategy is facilitated by (easier to use in) a marine habitat, as compared with a terrestrial habitat? A) internal fertilization B) asexual reproduction C) sexual reproduction X D) external fertilization E) viviparity 31. Why are mycorrhizal fungi superior to plants at acquiring mineral nutrition from the soil? A) Fungi secrete extracellular enzymes that can break down large molecules. B) Fungi can transport compounds through their mycelium from areas of surplus to areas of need. C) Hyphae are 100 to 1000 times smaller than plant roots. X D) All of the above answers apply. 32. This symbiotic association grows on rocks, where it begins the process of soil formation, and it is a major food source for caribou. A) ectomycorrhizal fungi B) chytrids X C) lichens D) arbuscular mycorrhizal fungi E) endophytes 33. Three populations of crickets look very similar, but the males have courtship songs that sound different. What function would this difference in song likely serve if the populations came in contact? A) A postzygotic isolating mechanism X B) A prezygotic isolating mechanism C) All of the above 34. How do mass extinctions differ from background extinctions? A) It is now recognized that mass extinctions but not background extinctions are generally caused by asteroid impacts. X B) Mass extinctions involve a relatively rapid extinction of a large proportion of organisms that were alive at that time. C) Mass extinctions account for most species that have gone extinct in the history of life on Earth. 35. How are two different species most likely to evolve from one ancestral species? X A) allopatrically, after the ancestral species has split into two populations B) phylogenetically, due to heterozygote advantage in hybrids C) sympatrically, by a point mutation affecting morphology or behavior Page 7 of 8 BIO 1130MM - Final Examination – December 15, 2008 Part A - Multiple choice questions - Place your answers on the answer sheet 36) This (these) green house gas(es) is(are) trapped in the gas hydrates of the ocean’s continental shelf A) Sulfur dioxide B) Carbon dioxide C) Methane X D) Both carbon dioxide and methane E) All of the above 37) Which of the following is not an example of macroevolution A) Extinction B) Speciation X C) Hybridization affects D) Paleontology 38) Which of the following sequence of traits, from primitive to most advanced, correctly describes the evolutionary history of echinoderms such as the sea star? (there are traits missing in the sequence – Use just the ones stated.) A) Water vascular system, diploblasty, Radial symmetry in the adult B) Coelom, Triploblasty, Radial symmetric adults, C) Coelom, Pore becomes the mouth, Radial symmetry in the adult X D) Diploblasty, Coelom, Pore becomes the anus, Water vascular system Page 8 of 8 ...
View Full Document

Ask a homework question - tutors are online