Student Number: Seat Number BIO 1130FF An Introduction to Organismal biology Final examination - Worth 35% of your final grade December 15, 2016 Part A: Multiple choice questions - 29 points (1 point/question) Please read the following instructions and sign in the space provided below to acknowledge the instructions: a) Cellular phones, unauthorized electronic devices or course notes (unless an open-book exam) are not allowed during this exam. Phones and devices must be turned off and put away in your bag. Do not keep them in your possession, such as in your pockets. If caught with such a device or document, the following may occur: you will be asked to leave immediately the exam, academic fraud allegations will be filed which may result in you obtaining a 0 (zero) for the exam. b) Fill in the bubbles for your name and student number and BIO1130FF for the course code. Fill in the same information in text in the boxes above the bubbles. c) Use only a pencil to fill in the answer sheet. If you erase a question 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. d) Do not place any answers on the question sheet. e) This is not an open book exam. f) A calculator is not required for this exam. g) CAUTION to minimize paper waste this part of the exam has been printed back to back be sure you have all the pages NOTE: If you do not fill in the student number and course code as BIO1130FF it will be impossible to identify your answer sheet and you will receive a ZERO for this part of the exam Signature Page 1 of 5
FF.1 Molecular phylogenies show all land plants are a monophyletic group. This suggests that. a. land plants have undergone a diversification since they first colonized terrestrial habitats. b. there was a single transition from aquatic to terrestrial habitats. c. wind-pollinated plants arose first. d. there were many different transitions from aquatic to terrestrial habitats. FF.2 Which of these are structures in a gametophyte generation? a. egg, sperm, zygote, embryo, seedling b. spores, egg, sperm, pollen, archegonium c. leaves, stems, roots, flowers, cones d. antheridium, embryo, seed, spores, flower FF.3 Which of the following correctly describes an evolutionary trend that occurred as land plants evolved? a. becoming seedless b. producing only one type of spore c. producing nonmotile gametes d. haploid generation becoming dominant FF.4 Modem adult echinoderms have a form of symmetry known as a. asymmetry. b. pentaradial. c. triradial. d. bilateral. e. trilateral. FF.5 The slender, rootlike structures found in nonvascular plants are called a. rhizomes b. gametangia c. thalli d. rhizoids e. protonemata FF.6 Why are mycorrhizal fungi superior to plants at acquiring mineral nutrition from the soil? a. Hyphae are 100 to 1000 times smaller than plant roots. b. Fungi can transport compounds through their mycelium from areas of surplus to areas of need. c. Fungi secrete extracellular enzymes that can break down large molecules. d. All of the above answers apply. FF.7 Lichens are generally made up of a. mycobionts and photobionts b. prokaryotes and plants c. plants and fungi d. fungi and animals FF.8 Fungal hyphae function to. a. absorb nutrients from substrates b. anchor the fungus to the substrate c. support sporangia d. penetrate host plant cell walls Page 2 of 5
FF.9 Birds are a. synapsids b. diapsids c. anapsids d. aviapsids FF.10 The main benefit to a plant from a mycorrhizal association is a. enhanced water uptake. b. removal of excess carbohydrates. c. enhanced mineral ion uptake. d. enhanced flow of carbohydrates to the roots. FF.11 Which of the following animals does not have a trochophore larval stage? a. clam b. snail c. octopus d. crab FF.12 The process in fungi that allows nutrients to flow from food-absorbing parts of the fungal body to other, nonabsorptive parts is a. osmosis. b. symbiosis. c. cytoplasmic streaming. d. plasmogamy. FF.13 A single vegetative body that contains both a fungus and a green alga would be called a(n) a. haustorium. b. ectomycorrhiza. c. lichen. d. arbuscule. FF.14 Which kinds of cells are produced by meiosis in flowering plants? a. haploid sporophytes b. diploid sporophytes c. haploid gametophytes d. sporophytes that can be haploid or diploid FF.15 During the process of karyogamy in a fungus,. a. asexual spores are produced b. the nuclei in the dikaryotic cell fuse c. cells of two different mating types make contact d. the cytoplasms of two genetically distinct partners fuse FF.16 The presence of a lophophore in a newly discovered species would suggest which of the following? a. This species is a suspension (filter) feeder. b. This species grows by shedding its cuticle. c. This species grows by shedding its exoskeleton. d. This species is probably an arthropod. Page 3 of 5
FF.17 Which of the following best describes fertilization in the fern life cycle? a. Pollen is blown by the wind to a female cone, where it forms a pollen tube that grows toward where the egg will form. b. Flagellated sperm are blown by the wind to a location near an egg, then swim through plant fluids to reach the egg. c. Flagellated sperm swim in a film of water on the surface of the plant to reach an egg. d. Flagellated sperm swim through plant fluids to reach an egg. FF.18 The fungal cell called a dikaryon contains a. immature haploid spores b. two identical diploid nuclei c. two nonidentical haploid nuclei d. a diploid zygote FF.19 Basidiospores are produced as a result of a. meiosis in haploid mycelial cells b. mitosis of haploid nuclei in the basidiocarp c. meiosis of the basidia d. mitosis of the basidia FF.20 The bodies of arthropods are supported mainly by a. an exoskeleton. b. only nonskeletal structures. c. joined exo- and endoskeletons. d. a hydrostatic skeleton. FF.21 Heterospory refers to having a. two spore types. b. male and female gametes. c. separate male and female plants. d. both sporophyte and gametophyte generations. e. both male and female parts on the same plant. FF.22 The mycelium that gives rise to basidiocarps is generally a. haploid b. diploid c. dikaryotic d. mostly haploid but with a few diploid reproductive cells FF.23 Which of the following is NOT typically found in primary plant cell walls? a. pectin b. cellulose c. hemicelluloses d. lignin FF.24 In addition to decomposition and decay, the other major ecological role of the fungi involves a. producing medicines for humans. b. digesting ant species. c. assisting plants in mineral acquisition. d. performing photosynthesis Page 4 of 5
FF.25 While looking at some seawater through your microscope, you spot the egg of an unknown animal. Which of the following tests could you not use to determine whether the developing organism is a protostome or a deuterostome? a. See whether the ectoderm forms the mature animal's skin/exoskeleton or nervous system b. See whether the pore formed during gastrulation becomes the mature animal's mouth or its anus. c. See whether the animal exhibits spiral cleavage or radial cleavage during early development. d. See whether the coelom is formed from a split in the mesoderm or from mesodermal pockets pinched off the gut. FF.26 Arrange the following adaptations to terrestrial life in the order in which they first appeared during the evolution of land plants: 1. seeds; 2. vascular tissue; 3. gametangia; 4. flowers a. 1, 2, 3, 4 b. 2, 3, 4, 1 c. 2, 3, 1, 4 d. 3, 2, 1, 4 FF.27 An advancement that reptiles show over amphibia is a. a tough scaly skin that provides protection against desiccation. b. lungs that can be ventilated by movements of the thoracic cavity c. a shelled egg that can be laid on land d. all of these FF.28 A mutualistic symbiosis where fungal hyphae grow between and around plant roots but do not penetrate plant root cells is called a(n) a. endomycorrhiza. b. arbuscule. c. ectomycorrhiza. d. lichen. FF.29 In pine trees the megaspores develop within a(n) a. seed. b. ovule. c. strobilus. d. sporopollenin. Page 5 of 5