Bio Final Exam

  • View

  • Download

Embed Size (px)

Text of Bio Final Exam

BIOL 1116 FINAL EXAM PRACTICE QUESTIONS 2012 1) Which of the following do all fungi have in common? A) meiosis in basidia B) symbioses with algae C) coenocytic hyphae D) sexual life cycle E) absorption of nutrients 2) Which of the following is characteristic of fungi with hyphae? A) They are adapted for rapid directional growth to new food sources. B) They acquire their nutrients by phagocytosis. C) They reproduce asexually by a process known as budding. D) Their body plan is a unicellular sphere. E) Their cell walls consist mainly of cellulose microfibrils. 3) What do fungi and arthropods have in common? A) The protective coats of both groups are made of chitin. B) The haploid state is dominant in both groups. C) Both groups have cell walls. D) Both groups are commonly coenocytic. E) Both groups are predominantly heterotrophs that ingest their food. 4) For mycelia described as heterokaryons or as being dikaryotic, which process has already occurred, and which process has not yet occurred? A) meiosis, mitosis B) plasmogamy, genetic recombination C) karyogamy, germination D) germination, plasmogamy E) germination, mitosis 5) Members of this phylum form arbuscular mycorrhizae: A) Ascomycota B) Glomeromycota C) Chytridiomycota D) Zygomycota E) Basidiomycota

6) Which of the following is (are) unique to animals? A) cells that have mitochondria B) the structural carbohydrate, chitin C) heterotrophy D) nervous conduction and muscular movement E) both A and C 7) The number of legs an insect has, the number of vertebrae in a vertebral column, or the number of joints in a digit (such as a finger) are all strongly influenced by A) heterotic genes B) Hox genes. C) introns within genes. D) heterogeneous genes. E) haploid genomes. 8) The last common ancestor of all animals was probably a A) unicellular yeast B) unicellular chytrid C) plant D) multicellular fungus E) flagellated protist 9) What is the probable sequence in which the following clades of animals originated, from earliest to most recent? 1. tetrapods 2. vertebrates 3. deuterostomes 4. amniotes 5. bilaterians A) 5 3 2 1 4 B) 5 3 2 4 1 C) 3 5 2 1 4 D) 3 5 4 2 1 E) 5 3 4 2 1

10) Cephalization is most closely associated with which of the following? A) sedentary lifestyle B) predators, but not prey C) concentration of sensory structures at the anterior end D) a sessile existence E) a backbone 11) Which cells in a sponge are primarily responsible for trapping and removing food particles from circulating water? A) choanocytes B) pore cells (porocytes) C) mesoglea cells D) epidermal cells 12) A radially symmetrical animal that has two embryonic tissue layers probably belongs to which phylum? A) Echinodermata B) Cnidaria C) Porifera D) Platyhelminthes E) Nematoda 13) What would be the most effective method of reducing the incidence of blood flukes, Schistosoma, in a human population? A) Avoid contact with rodent droppings. B) Carefully wash all raw fruits and vegetables. C) Reduce the mosquito population. D) Reduce the freshwater snail population. E) Purify all drinking water. 14) A lophophore is used by ectoprocts and brachiopods: A) as a skeletal system B) for sensory reception C) for feeding D) at a larval stage E) for locomotion

15) A terrestrial mollusc without a shell belongs to which class? A) chitons B) cephalopods C) bivalves D) gastropods 16) Deuterostomes that have an endoskeleton are part of which phylum? A) Arthropoda B) Echinodermata C) Annelida D) Cnidaria E) Mollusca 17) While working in your garden, you discover a worm-like, segmented animal with two pairs of jointed legs per segment. The animal is probably a A) millipede B) caterpillar C) centipede D) sow bug E) polychaete worm 18) Which living chordates are postulated to be most like the earliest chordates in appearance? A) reptiles B) lancelets C) adult tunicates D) amphibians E) chondrichthyans 19) What do hagfishes and lampreys have in common with the extinct conodonts? A) their mode of feeding B) the jawless condition C) lungs D) bony vertebrae E) swim bladders

20) Arrange these taxonomic terms from most inclusive (i.e., most general) to least inclusive (i.e., most specific). 1. lobe-fins 2. amphibians 3. gnathostomes 4. osteichthyans 5. tetrapods A) 3, 4, 5, 1, 2 B) 4, 3, 1, 5, 2 C) 3, 4, 1, 5, 2 D) 4, 3, 2, 5, 1 E) 4, 2, 3, 5, 1 21) Which of the following are the only extant animals that descended directly from dinosaurs? A) mammals B) lizards C) snakes D) crocodiles E) birds For the following items, match the extant vertebrate groups with the descriptions. 22) May have lungs, or gills, and may use skin as a respiratory surface: A) chondrichthyans B) amphibians C) mammals D) birds E) nonbird reptiles 23) Which are the most abundant and diverse of the extant vertebrates? A) mammals B) nonbird reptiles C) birds D) amphibians E) ray-finned fishes

24) What is a distinctive feature of the chondrichthyans? A) lack of jaws B) unpaired fins C) an amniotic egg D) a mostly cartilaginous endoskeleton E) an acute sense of vision that includes the ability to distinguish colors 25) Arrange the following taxonomic terms from most inclusive (i.e., most general) to least inclusive (i.e., most specific): 1. hominoids 2. hominins 3. Homo 4. anthropoids 5. primates A) 5, 2, 1, 4, 3 B) 5, 1, 4, 2, 3 C) 5, 4, 1, 2, 3 D) 5, 4, 2, 1, 3 E) 5, 2, 4, 1, 3 26) In the territorial behaviour of the stickleback fish, the red belly of one male elicits attack from another male by functioning as A) a sign stimulus. B) an imprint stimulus. C) a fixed action pattern. D) a search image. E) a pheromone. 27) You turn on a light and observe cockroaches scurrying to dark hiding places. What have you observed? A) migration B) taxis C) operant conditioning D) visual communication E) learned behaviour

28) A chemical produced by an animal that serves as a communication to another animal of the same species is called A) a marker B) a transducer C) an agonistic chemical D) a pheromone E) an imprinter 29) Male blackbirds may mate with as many as 17 females on their breeding territory. This mating system is BEST described ass? A) polygamy B) polyandry C) polygyny D) monogamy E) polyamory 30) Animals that help other animals of the same species are expected to: A) have excess energy reserves B) have defective genes controlling their behaviour C) be bigger and stronger than the other animals D) be genetically related to the other animals E) be male 31) The evolution of mating systems is most likely affected by: A) population size B) care required by young C) certainty of paternity D) B and C only E) A, B, and C 32) Which of the following is true about imprinting? A) It causes behaviours that last for only a short time (the sensitive period). B) It occurs only in birds C) It happens to many adult animals, but not to their young D) It is a type of learning that does not involve innate behaviour E) It may be triggered by visual or chemical stimuli

33) Which of the following are important biotic factors that can affect the structure and organization of biological communities? A) temperature, water B) nutrient availability, soil pH C) precipitation, wind D) light intensity, seasonality E) predation, competition 34) Probably the most important factor(s) affecting the distribution of biomes is (are): A) species diversity B) climate C) proximity to large bodies of water D) wind and ocean water current patterns. E) day length and rainfall 35) Where would an ecologist find the most phytoplankton in a lake? A) photic zone B) oligotrophic zone C) benthic zone D) aphotic zone E) profundal zone 36) An ecologist recorded 12 white-tailed deer, Odocoileus virginianus, per square mile in one woodlot and 20 per square mile on another woodlot. What was the ecologist comparing? A) quadrats B) density C) carrying capacity D) range E) dispersion 37) Exponential population growth is most likely when: A) A population is close to the carrying capacity B) When there are few predators C) When the population is small compared to the carrying capacity such as in an endangered species D) When there are few parasites E) When the population is at roughly half of the carrying capacity

38) Pacific salmon or annual plants illustrate which of the following? A) semelparous B) cohort C) dispersion D) iteroparous E) Allee effect 39) In models of sigmoidal (logistic) population growth: A) new individuals are added to the population most rapidly at the beginning of the population's growth. B) carrying capacity is never reached C) only density-independent factors affect the rate of population growth. D) population growth rate slows dramatically as N approaches K. E) only density-dependent factors affect the rate of population growth. 40) Which of the following is an incorrect statement about the regulation of populations? A) Because of the overlapping nature of population-regulating factors, it is often difficult to precisely determine their cause-and-effect relationships. B) Density-independent factors have an increasingly greater effect as a popu