BISC120_Fall06_BakusWetzer_Exam2

BISC120_Fall06_BakusWetzer_Exam2 - “<2er 2 Lecture...

Info icon This preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 8
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 10
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: “<2er 2 Lecture Exam — BISC 120 — Fall 2006 (Bakus-Wetzer) ll! READ ALL INSTRUCTIONS CAREFULLY 1. Multiple Choice. Select the most appropriate answer and write in CAPITAL LETFERS ONLY in the accompanying box. 2. Write only within the boxes provided. 3. Write your name on all the pages 4. Make sure you have a total of 13 pages Page # Score Page # Score 1 O /0 pts 8 Z /12 pts 2 l /15pts 9 % I15 pts Total score Kb /200 pts W17 7' Awalobe(3ptsx10=30pts). \ t. '.'.’nich of the following is not a method of asexual reproduction in plants? / > A. apomixis B. fragmentation C. runners D. scions @None of the above EV 2‘Coniferous forests generally have which of the following characteristics? .relatively rapid nutrient recycling B. abundance of soil fungi C. high biodiversity D. numerous epiphytes @None of the above .(QWhich of the' following is not a type of plant response to the environment? 6 Moncentration of intracellular solutes ,B./ secretion of salt from salt glands C. functional statoliths ,Wdropping leaves E. None of the above [E] 4. Which of the following is not a major characteristic of freshwater wetlands? A. pools and rapids /B./abundant wildlife ynursery grounds for many animals D/excellent water filtration systems E. high primary production a] 5. Which of the following is not characteristic of th? A. albacore /B./low nutrient concentrations C. dinoflagellates D. krill E. zonation with depth '3‘. Bird guano is an important source for which major biogeochemical cycle? A. nitrogen B. carbon VMYW C. hydrogen D. water E. None of the above IE] 7. Which of the following is not characteristic of rocky shores? . f/xposure to air . wave action C. meiofauna D. predators E. None of the above ‘\ 8. Which of the following i the role of movement of water from the roots El to the leaves of a tr -9 Mesion to xylem walls . tr nspiration . ,%:hesion by hydrogen bonds D. etiolation E. None of the above E 9. Which of the following is not a characteristic of native grasslands? mptation to fire 'wtrient poor soil C. r—selected species D. nematodes E. major agricultural areas today El. Which of the following is a'eral for land plants? J Wassium) W "’en) (phosphorus) D. Co (cobalt) E. None of the above i B. Complete the following fill-ins in the space provided (52 pts). 0 _ Describe 3 ways in which substances move through plant cells (6 pts) 1. £73. DfiMh‘Mluc/J ”flag?“ QWICLLW/ 213ch gm 6/1! wa /3 vs Men/Jaws 2. The symbiotic nitrogen-fixing bacteria i the tissues of root nodules are @ called filffiim f VN’WDQLA and are represented by the genus M bin/MK (4 pts). 3. Double fertilization in angiosperm reproduction results in the production of % We agar/LA and % b/Ul/[Q . The former contains 3 sets of chromosomes and the latter contains 2 sets of chromosomes (8 pts). ¥ 4.'Net primary production: g {1356 Pfllyfif £Z§MM E V2,) 2/5”th (4 pts). \ and averages about ' (é % for land plants (6 pts). A \ 4 \x 2% 6. Name the 3 most important groups of plant hormones: pit/Dd We and £13le Mtg) and Gil User/0t 044 (6 pts). /. O O 7. The dominant tree in the taiga or boreal forest is most often a W _ “(i/\CO tree (2 pts). 8. Marine nutrient enrichment along the est coa ts 0 Writs results; from “13W W73 , and is caused by ”4 5M \ {14L ‘ M‘ mm ngx ”21nd (inrnsli‘s , 0 WW TN 6” w 1 Mb (4 pts). (WY 9. In germinating angiosperm seeds, the radical produces the rot/k e epicotyl produces the , and the hypocotyis produces (6 pts). . 10' Lakes that are geologically r\ew a d poor in plankton are called ~» 5 ‘\ ‘ M c/ dig M W PAged (matured) lakes with abundant A? plankton are called m [2K receiving large amounts of fertilizers from farm runoff become ed M l akes (6 pts). kes. lakes. Lakes C. Definitions. Define the following terms in the box and give specific examples where appropriate: Nitrification (5 pts): NiHiQim/hm E «pram/1 M whim lama? ’Mwm juice, A} m {MM/L we '5 N5; M W723; ' ' WK WI“ al/nw [m W21 - +11% be MW Mi 14mm ., N03, (gum/{WM AME) ' ' 9N ‘ * ‘ at)“; , Proton pump (5 pts); 072M v MM W (72’ Mfw%KA§/9%? g; Maw}, «FM-P fmivws (HQ/ M914 QM LA", >00 Maybj ”\wa Pamxé 113% of: ) ' l9)”; fk M’W fig’MM LA?» wiwi’wg MUM ”'4 W M WM Your Namew ’0. Problem: A forest food chain has 5 trophic levels. The biomass of plants is 160 kg/hectare. The trophic efficienc¥ at each link in the food chain is 20 %. A flood destroys half of the organisms at trophic level 3. How much biomass (kg/hectare) is represented by the top carnivores? Show all your work in detail in the box (22 pts). WJEMW‘GDA/ (Mb *1) [Wt/5 V [40 WW .71: (max) L94 5?: (MW) Your Name:%‘_ Dr. Wetzer’s Portion ( 86 ptsl Instructions: Remember the rules for proper capitalization. You will loose 1 point per question for improper capitalization. f1. Trilobites and eurypterans are two major extinct arthropod groups. Fill in the scientific names of the four major extant (living today) arthropods groups. (4 pts.) (I 2‘ "’\ $3 v . 2. Spiders have six pairs of appendages. Four pairs are walking legs. Name the ,S\ ’ other two and briefly describe their function. (4 pts.) ‘5, y . 43k g One/TAU/ arexffitbm 77%] Mme/fl kc 8 \ M ”Mi SPDU/r/ (k W1 1:: g K ' 3. Name the terrestrial arthropod aroup that subsists on decaying leaves and plant matter. These orgfiof walking legs on each of their many trunk segments. These‘animals may been among the earliest land animals. (4 pts.) Your Name: W 4. Flight is one key feature to which arthropod groups’ incredible success? (4 pts.) that at least 99.9% of all species that ever lived are now m to predispose a species to extinction. What are '\_5/ Paleontologists estimate extinct. Two characteristics see . There is only one phylum containing vertebrate . ll animals are invertebrates. Invertebrates are incredi 6 a how many phyla? (3 pts.) A. 15 27 C. 34 . none of the above ( 7. l Animals have several unique characteristics that distinguish them from plants, gi, and protists. Name two characteristics that are unique to animals. (4 pts.) \J lam WWW 8. One hypothesis below is based on molecular characteristics of animals. The second hypothesis is based on morphological and developmental characteristics. Put the following labels on the correct branches. Note that some of the same labels are the same on both trees. The quotation marks around "Radiata" arid “Porifera” denotes that these are not monophyletic groups. (14 pts.) Print your answers on! in CAPITAL LETTERS A “Porifera” F. _Ecdysozoa B. "Radiata" G. Eumetazoa C. Ancestral colonial flagellate H Lophotrochozoa D Bilateria l Metazoa E Deuterostomia J Protostomia (We :25 Pump Human. m. ms.“ nu m...» kph-uh mum-1m .ma owe“ m m we: I» mama nemomm Rams M mm mm. 9. Define macroevolution. OR Define microevolution. If you defined both, only the first answer will be graded (4 pts.). ’10 Your Name: 10. Trueor False. Please write the whole word. No T’s or F’s (4 pts.) ij ' 622/ a. Natural selection causes genetic changes in individuals. YMQ/ b. Natural selection occurs to individuals, but evolution occurs in populations. 4 0. Evolution is a change in the allele frequencies of an individual, owing to differential reproduction among organisms bearing the same alleles. YLW/ d. Evolutionary changes are not “good" or “progressive” in any absolute sense. E11. Which of the following factors woul.1tribute to allopatric s eciation? (3 M—x‘ pts.) - A.) A population becomes geographically isolated from the parent population. B. The separated population is small, and genetic drift occurs. @ The isolated population is exposed to different selection pressures than the ancestral population. ' D. Different mutations appear in the gene pools of the two separated populations. ® Gene flow between the two populations is extensive. 12. A genetic change that caused a certain 'Hox gene to be expressed along the tip @f a vertebrate limb instead of farther back on the limb made possible the evolution of the tetrapod limb. This type of change is illustrative of (3 pts.) A. the influence of environment on an individual’s development paedomorphosis, or retention of ancestral juvenile structures in an adult organisms B C. a change in a developmental gene or in its regulation that altered the spatial organization of body parts D punctuated equilibrium E the origin of a new species due to allopolyploidy. 11 cts of dominant and recessive alleles, an organism’s traits do not always reveal its genetic composition. What is the term used to describe these physical traits, i.e., outward [—39% Single word answer. (3 pts.) 3 ‘ genomic imprinting a genetic disorder or condition caused by alterations of chromosome : ? number or chromosome structure C crossing over */ D sex-linked genes E none of the above 12 Your Namezm 17. DNA is composed of a sugar—phosphate backbone plus 4 nitrogenous bases. List the four bases and list which bases can pair with which other bases. (4 pts.) Hm he, awmfi Mob ,4; @Wwac3l—nghmé/ 18. Label the following: (8 pts.) /'\ A. parental DNA ‘E template strand B. Okazaki fragments F. leading strand C. DNA pol ”I G. 3’ end ' D DNA ligase 5’ end Make sure your labels are clear and definitive. <-—---' \ MM cam-w:- 3m Penna)" CWCSEIL m mummy u Mm! BlcupurwavnirrghAz ruin“ . \ Wt. 19. What are the three key points 0 Da‘nNin’s‘vTheory (descent with modification)? (6pts.) (D HMMHWWZ W/rywdflru \/ D MSM MPG/Lew \/ @ @ 14+: ‘LM {,vbC/CQ-M Oar/um \/ .. ~. NA) “i ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern