Unit 1 Nature Of Science Study Guide Answer Key

Answer Key 1. Texas aquaTic science A joint project Texas Parks and Wildlife Department The Meadows Center for Water and the Environment, Texas State University Harte Research Institute for Gulf of Mexico Studies, Texas A&M University - Corpus Christi. When complete, it becomes a fantastic study guide for your unit test covering the steps and application of the scientific method. meteorology 5. Course 1 Frogs Course 2 Leopards Course 3 Owls. The name of the softest mineral on the Mohs’ scale is talc. Classification Study Guide | Classification Study Guide KEY Click on the links below for resources by Essential Question: EQ 1: How do scientists classify living organisms? TCSS 7th Science Classification Unit answer questions determining whether Freddie the Fungus. As settlers migrated and settled across the vast expanse of North America, they developed quite. Evergreen: Answer Key 1 Fawcett, Evergreen 9/e STUDENT ANSWER KEY UNIT 1 Getting Started CHAPTER 1 Exploring the Writing Process Practice 1 (p. proposed that all cells come from other cells 6. 1 MANIPULATING DNA Study Guide KEY CONCEPT Biotechnology relies on cutting DNA at specific places. Unit #1: The Living World (Ecosystems) Unit #1- Week #1 Objectives This Week: The objectives this week is to introduce students to the topics in AP Environmental Science and to introduce students to the structure, resources and pacing of the course. Examples: muscle, nerve, skeletal cells 3. You can play Meteorology or Prologue and Nature of Science to help review for Midterm! This will act as a study guide for you. (6x) 115' (2x)" (3x- 18)0 IC16 3. 1 Earth Science 1. Access answers to hundreds of nature of science questions, with clear explanations designed in a way that's easy for you to understand. Include with your answer the textbook section where you found the answer. During this time, direct instruction with individual or groups of students can occur for those students who need additional support. Grade 9 to Grade 12 Science Lesson Plans. oceanography 2. The (Frog ) text is the main book of the 6th Grade and the one that has on-line access. Why is it inappropriate to refer to “nature” as the “6 th book of the Bible”? 3. What is the atmosphere? thin envelope of gases that surrounds the Earth and is held in place by gravity. Unit 1 – Geography: Its Nature and Perspectives; Unit 2 – Population and Migration; Unit 3 – Cultural Patterns and Processes; Unit 4 – Political Organization of Space; Unit 5 – Agriculture and Rural Land Use; Unit 6 – Industrialization and Economic Development; Unit 7 – Cities/Urban Land Use and Patterns; National Exam Material. Unit 2: Earth-Moon-Sun System Study Guide. Answer Key Section 3. Esophagus. So this website is designed for YOU to get help with some questions on Study Island. Studying science will be a lot easier and will be more effective if you really see the real-world applications of the bookish concepts that you learn, and considering these, study guides in Science is your best option. Note: Many questions are multiple parts. 5th Grade Science Worksheets and Answer key, Study Guides. With your home group: Share what you learned with your expert group. 3 Explain what chemical com-pounds are. Midterm Long Answers Key. sslc socilal science history important heading questions and Answers free download (4 pages Tamil Medium) DOWNLOAD 8. Click on "6th grade Science vocabulary" to go back to the vocabulary home page. Scientific Method Unit Notes-Scientific Method Notes (pdf) - The note worksheet I use to introduce a basic version of the "scientific method". What were the typical ideas of the age of the earth & evolution before Darwin? 2. 89 x 10 3 liters You are given five pieces of pure aluminum, all of different sizes. Man has a spiritual nature; he is made in God’s image. The (Frog ) text is the main book of the 6th Grade and the one that has on-line access. Why is it inappropriate to refer to “nature” as the “6 th book of the Bible”? 3. doc Have students complete anticipation guide. form the base of all ecological pyramids, make organic molecules from inorganic molecules, producers 2. Midterm Long Answers Key. 3 Reaction Rate Laws In your textbook, read about reaction rate laws and determining reaction order. 6) Answers will vary. Examples: muscle, nerve, skeletal cells 3. Chapter 1 Science and Sustainability: An Introduction to Environmental Science Chapter Objectives This chapter will help you: Define the term environment and describe the field of environmental science Explain the importance of natural resources and ecosystem services in our lives. Students may say that the color test was the least useful, as the colors of the samples may be very similar or not easily recognizable. meniscus 3. _____ occurs when the velocity of an object changes. From a general summary to chapter summaries to explanations of famous quotes, the SparkNotes The Scientific Revolution (1550-1700) Study Guide has everything you need to ace quizzes, tests, and essays. Force, Motion, Energy STUDY GUIDE (KEY) Standard 4. Chapter 1- The Nature of Life Science. kept the same 7. Here are some study materials for Friday's test. Unit 4 Plants. Stem cells go through two processes to become specialized cells. Studying science will be a lot easier and will be more effective if you really see the real-world applications of the bookish concepts that you learn, and considering these, study guides in Science is your best option. Unit 1: Matter - Study Guide ANSWER KEY 1. Introduce and reinforce science topics with videos, slideshows, step-by-step tutorials, and other activities. This guide will highlight what is important in each chapter (the study objectives located under the rubric “Chapter Focus”). near the equator 10. A Substance that cannot be broken down chemically into any other substance is an ELEMENT. Key concept summaries reinforce critical material from the primary book and enhance mastery of this complex subject. Turngren, Minnesota Literacy Council, 2013 p. Ecosystems Study Guide Rock Cycle Study Guide Fossils and Rock Layers Study Guide Check your answers Guided Notes Earth's Layers and Plate Tectonics Study Guide Check your answers. "I thought the kids already knew it, but from the pretest scores, I can see I was wrong. 6) Nature of Science Vocabulary from each section that you need to know! Fill in the blanks. concluded that plants are made of cells 4. Waves Unit Study Guide Name_____ Date_____ Period _____ 3 25. Mackey www. Complete the following table by writing the property being measured (mass, length, volume, or temperature) and either the name of the unit or its abbreviation. Unit 1 Measuring Earth. Gas Laws and Phase Changes Study Guide. ” Francis Scott Key penned the words to our country’s anthem during the War of 1812. Quizlet Review Game: (only required if Unit 8 Study Guide not completed by 5/29) Section D Answer Key. Unit Length: Approximately 31 days Matter Review Items Matter Unit Test 1 Study Guide | Matter Unit Test 1 Study Guide KEY Matter Unit Test 2 Study Guide | Matter Unit Test 2 Study Guide KEY Click on the links below for resources by Essential Question: EQ 1: What is matter and the Law of Conservation of matter?. UNIT 1 EARTH'S ATMOSPHERE STUDY GUIDE THE ATMOSPHERE + ITS PROPERTIES 1. sslc socilal science history important heading questions and Answers free download (4 pages Tamil Medium) DOWNLOAD 8. What are the 3 phases of the cell cycle? Interphase, Mitosis and Cytokinesis 2. All organisms are made up of one or more cells. meteorology 5. Berry's 6th Grade Classroom. If sentences have errors, students may need to do additional words. This unit is an introductory unit to the foundations of science, matter and measurement. We are the home to award-winning digital textbooks, multimedia content, and the largest professional development community of its kind. Nature of Science Study GuideNature of Science Study Guide 1. Which wave(s) could use a medium to transfer energy? Figure 1 and Figure 2 14. The Nature of Science I. Unit 1 Study Guide - Lab Safety & Equipment, Nature of Science, Characteristics of Life Thursday, August 13 Know Beaker Erlenmeyer Flask Goggles Graduated Cylinder Pipet Microscope Slide Thermometer Test Tube Forceps Ruler Hypothesis Procedure Constant Factors Independent Variables Dependent Variables Observation Inference Quantitative Data. Cell Parts Study Guide | Cell Parts Study Guide KEY Cell Processes Study Guide | Cell Processes Study Guide KEY Human Body Study Guide | Human Body Study Guide KEY Introduction to Life Science and Unit 1: Characteristics of Living Things - Use the resources below as an introduction to the unit and to Life Science. The Nature of Science Study guide answer key. Key Term Review: Nonmetals, Metalloids, and Radioactive Elements. Use any additional resources (note guides, videos, games, etc. UNIT 1 EARTH'S ATMOSPHERE STUDY GUIDE THE ATMOSPHERE + ITS PROPERTIES 1. Biology ANSWER KEY Unit 1 - Introduction to Biology STUDY GUIDE Essential Skills Questions: 1-1. 1 Identify the three subatomic particles found in atoms. ANSWER KEY Introduction to Matter Introduction to Matter Measuring Matter Review and Reinforce 1. 1 (very soft) No streak C Talc Questions 1. Home | Health | Life Science | Woodland Hills Academy: Unit 1- The Study of Living Things. Make sure to remember your password. explains many observations 8. review, before you continue with this unit. Here are some Hidden Figures unit study resources to help you turn the best selling book and new movie into a STEM based learning experience. The universe is 13. Complete Us History Outline Review Guide Answer Key. Nature of Science Unit Study Guide Use all of your note packets up to this point to complete the study guide. Entry Numbers. What does the deep zone of the ocean look like? Can plants grow there? 5. Evergreen: Answer Key 1 Fawcett, Evergreen 9/e STUDENT ANSWER KEY UNIT 1 Getting Started CHAPTER 1 Exploring the Writing Process Practice 1 (p. Worksheets are Newtons laws of motion, Newtons laws work, Newtons laws of motion work, Forces newtons laws of motion, Newtons laws of motion, Newtons laws practice problems, Lesson physical science review of newtons laws of, Name period date newtons laws of motion. Why is it improper and unwise to use the findings of. Steps for how to do electron shells/orbitals september 24 Atomic Theory Study Guide - Answer Key October 13. astronomy 3. Rocks firmly anchored to the ground and rocks floating through space fascinate us. 4/29 after school. At the time of the novel's composition, Golding, who had published an anthology of poetry nearly two decades earlier, had been working for a number of years as a teacher and training as a scientist. Why is it inappropriate to refer to “nature” as the “6 th book of the Bible”? 3. Life Science Unit 5. Be able to identify the hierarchical levels of organization of life from molecules and atoms to. What is the top of a wave called? Crest 2. Study Guide for Campbell Biology. 8th Grade Science Waves Unit Information Milestones Domain/Weight: 40% Energy and Its Transformation Unit Length: Approximately 22 days Waves Review Items Waves Unit Test 1 Study Guide | Waves Unit Test 1 Study Guide KEY Click on the links below for resources by Essential Question: EQ 1: What are the characteristics of mechanical and. Covers the following skills: understanding of the processes of science by using quantitative and qualitative observations to create their own inferences and predictions. Nature of Science Study GuideNature of Science Study Guide 1. Unit 3: Classification of Matter. science does use accepted scientific methods. A list of resources to help students study Earth Science. If you don't see any interesting for you, use our search form on bottom ↓. Study Guide. Evolution Review Guide Answer Key Things you need to know/ be able to answer: 1. Study Resources. sliding 14. For each goal listed below, try to recall any discussion, activity, or example related to that particular goal. Sign up for free today and boost your AP, SAT and high school exam scores!. A web bonus! Use these pre-made flashcards to study. Consider what this means for a minute or two. HW is 3 flashcards. Answer Key is less common. The underlying unit (depth interval, 12 to 24 m), unit 2, is composed of an upper part containing a large amount of randomly (almost evenly) distributed 0. Use your time wisely. We think it carry a new challenge for Chapter 1 Section 2 The Nature Of Science Worksheet Answers And 20 New S Mutations Worksheet Answer Key Worksheet An. Fill in the correct Kingdoms into the Dichotomous key below. 6) Answers will vary. This makes one whole day. Foundations of Earth Science (Lutgens and Tarbuck, 6. 001 - Environmental Science In this video Paul Andersen outlines the AP Environmental Science course. Sort the following according to how fast sound will travel through the medium: liquid, solid, gas. Grade 8 Science Notes and Worksheets. 2 The Nature of Science Hands-On Activities. Unlock the wonder and fun of science by exploring the printables, lessons, graphic organizers, and quizzes below. Entry Numbers. UNIT MATERIALS Each unit provides a wide variety of resources related to the unit topic. the Great Depression C. The Ocean Book study guide answers • The Ocean Book Study Guide Answer Key INTRODUCTION Short Answer. NASM-CPT Study Guide This study guide is divided up into 6 primary domains with essential knowledge topics for the certification exam. molecules least likely to be broken down. Matter Unit Test 1 Study Guide | Matter Unit Test 1 Study Guide KEY Matter Unit Test 2 Study Guide | Matter Unit Test 2 Study Guide KEY Click on the links below for resources by Essential Question: EQ 1: What is matter and the Law of Conservation of matter? TCSS 8th Science Matter Unit. Students will take notes in class ALSO 3/26 and 3/27. Unit 1: Nature of Science. Define the following terms: Autotroph, Heterotroph 2. Explain what happens to the energy of the molecules as the temperature is lowered. 1 Chapter 2. CHAPTER 1 REVIEW Matter and Change SECTION 3 SHORT ANSWER Answer the following questions in the space provided. Unit 5 Test: Force and Motion 11. sslc socilal science history important heading questions and Answers free download (4 pages Tamil Medium) DOWNLOAD 8. This measure is given as a number. Use this with the online course and textbook to help prepare for your exam. You measure both the mass and volume of each piece, and plot mass vs. John Adams B. Candy Lights - This is a quick and easy experiment that can be used to introduce a unit on chemical bonds or light. Nature of Science Standards Summary and Practice Questions SC. DNA structure is the same in all organisms. acid hydrogen bond base KEY- Exam 1 study guide. Section 1-2 Review and Reinforce. Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached. 6: Earth and Space Science – Plate Tectonics H. A Unit comprises three Modules, each requiring 50 hours. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 1: 15 Hours: Designing a Food and Nutrition Program Project Rubric Government Nutrition and Regulation Research Worksheet WIC Approved Foods List 2010 Packet WIC Income Eligible Guidelines 2010 Handout WIC Worksheet WIC Worksheet Answer Key. Study Guide Unit 3 Resource Book---3. for their students. Unit 1: The Nature of Science. It includes Chemical Reactions and Equations, Acids Bases and Salts, Metals and Non- etc. Rocks firmly anchored to the ground and rocks floating through space fascinate us. From a general summary to chapter summaries to explanations of famous quotes, the SparkNotes The Scientific Revolution (1550-1700) Study Guide has everything you need to ace quizzes, tests, and essays. a y , Motion, U 1. Thomsen, American River College. Unit 2: Earth-Moon-Sun System Study Guide. 2 mitosis 3rd/4th- Watched Wolf video (Predator/prey) and answered division, and the process of differentiation. Block Scheduling Lesson Plans Chapter 1 Earth Science: Geology, the Environment, and the Universe11 The Nature of Science Assessment Resources GeoDigest Unit 1, SE pp. 4) Answers will vary. Foldables-Reading and Study Skills activity sheet MEETING INDIVIDUAL NEEDS Teacher Guide and Answers. (1 1 Focus on Life Science ANSWER KEY. Contact Me. Enterprising students use this website to learn AP class material, study for class quizzes and tests, and to brush up on course material before the big exam day. The Integrated iScience Series has three courses as follows:. This is an answer key to accompany the Study Guide Worksheet for Act I of Julius Caesar. Question No. This Intro to Forensic Science Review Worksheet contains a Crossword Puzzle with 43 questions and 3 Short Answer essay questions. This lesson uses the book, The Immortal Life of Henrietta Lacks, written by Rebecca Skloot, which is one of the winners of the 2011 SB&F Prize for Excellence in Science Books. Be able to identify and explain the 5 characteristics of living things. Some of the answers help save people's lives, save Earth's resources,. Bland: Extra this prezi helps with Notes page 7-7 (if you don't understand it). organize information/data in writing, charts and graphs. What is frequency? How many waves go past a point in one second; unit of measurement is hertz (Hz). Your best preparation for the exam is to know your stuff. It will give you valuable information about the EOCT, explain how to prepare to take the EOCT, and provide some opportunities to practice for the EOCT. [Type&text]& & when#the#Moon#passes#behindtheEarth#so#that#the#Earth#blocksthe#Sun'sraysfromstrikingtheMoon. Science is understanding the world around us. edition, 2011) The textbook for EAS 100, Foundations of Earth Science, by Lutgens and Tarbuck is an excellent book. Biology ANSWER KEY Unit 1 - Introduction to Biology STUDY GUIDE Essential Skills Questions: 1-1. Man has a spiritual nature; he is made in God’s image. 1 MANIPULATING DNA Study Guide KEY CONCEPT Biotechnology relies on cutting DNA at specific places. It is the basic particle from which all elements are made. 1 Explain why science is limited to natural explanations of how the world. 1 The Discovery of Cells Reinforcement and Study Guide. The app includes the same information and practice questions found in the Official Study Guide and subject-specific Examination Guide but offers the convenience of answering sample questions on your. Named after seeing a piece of cork – dead cells. Define the following terms: Autotroph, Heterotroph 2. too small to be seen 2. Unit I Geography-Nature and Perspectives Rubenstein's Study Guide Ch 1 Thinking Geographically. Unit 1 addresses Ecology, Human Population and Natural Resource Use, while Unit 2 deals with Agriculture, Energy, and Environmental Pollution. The unit plan is a model that can be modified for a given school context; it includes standards alignment and a learning plan. Key concept summaries reinforce critical material from the primary book and enhance mastery of this complex subject. Reviewing your labs may also be helpful. Find the amount of unbalanced force. Unit 6 Study Guide: Climate Change and You. LIVING THINGS AND NON LIVING THINGS. 5 billion years old. Quantity : Total : $17. This guide will highlight what is important in each chapter (the study objectives located under the rubric “Chapter Focus”). This lesson uses the book, The Immortal Life of Henrietta Lacks, written by Rebecca Skloot, which is one of the winners of the 2011 SB&F Prize for Excellence in Science Books. Science & Technology Middle School Teacher Packet. As you can see, six of the seven topic areas are weighted exactly the same, so it is important to study all areas as equally as possible. Solve for x. The cell translates the code contained in the mRNA into a new. This Study Guide provides a variety of activities that help students check their understanding of each lesson’s main idea and practice using the lesson’s vocabulary. Each section focuses on a different aspect of the EOCT. Explain the meaning of evolutionary fitness. It takes 24 hours for the Earth to make one complete rotation (360 ). Knowledge 1. Which wave(s) is a transverse wave? Figure 2 11. FCS-FNL-1 (e) ELA11LSV1 NFCS14. 4) Answers will vary. B Mitosis Worksheet & Diagram Identification 1. Earth/Space -Earth/Space --- lava, soil lava, soil lava, soil. Sort the following according to how fast sound will travel through the medium: liquid, solid, gas. D o E F 2. The laws of nature are written as mathematical equations because they show a precise relationship between physical quantities and can be used to make predictions about future experiments. GED Test Prep. What are the 3 phases of the cell cycle? Interphase, Mitosis and Cytokinesis 2. ) energy: the capacity to do work or the ability to cause motion 2. Unit Study Guide: Study Guide: Nature of Science Subpages (7): Lesson 1: Types of Science Lesson 2: Matter & Measurement Lesson 3: Density Lesson 4: Metric System Lesson 5: Graphing Lesson 5: Unit Conversions Lesson 6: Scientific Method. Study physical-science flashcards and notes. Start studying Unit 1: Nature of Science | Study Guide. Chapter 1: The Nature of Science STUDY GUIDE Answer Key Section 1. Answers will vary, but could include main ideas from the summary or 1 main idea from each Reading (2). 2 Predicting. What does the deep zone of the ocean look like? Can plants grow there? 5. In the space below, draw a nucleotide and label its three parts using words and arrows. The universe is 13. 2 The Plasma. The Exploratorium - Explore hundreds of science, art, and human perception exhibits along with hands-on science projects, on-line science activities, science news and magazines. New information can be gathered by performing _____. Midterm Long Answers Key. Christopherson, American River College Charles E. Each section focuses on a different aspect of the EOCT. To facilitate the use of this textbook as a reference, answer the following questions. MLA Citation Methods Quiz (answer key) Sponsored by The Center for Teaching and Learning at UIS What does the acronym MLA stand for? Answer: Modern Language Association What is MLA? Answer: A method of citing references in research papers When documenting one author in reference in a text, which is correct? a. Waves transfer Energy. Curriculum materials are arranged alphabetically by title in each category (Core Materials, Supplementary Units, and Science Activity Books) in chapters 1 through 5 of this guide. Write them on the lines below. Unit 3 Animals. Learn vocabulary, terms, and more with flashcards, games, and other study tools. HMS Challenger marked the beginning of the modern science of oceanography 3. Practice Tests and Answer Keys Practice Test Answer Key © 2012 National Restaurant Association Educational Foundation. Table of Contents 4 3. 4) Answers will vary. Start studying Unit 1: Nature of Science - Study Guide. Florida Statewide Science Assessment Sample Answers. IPC Chapter 1 The Nature of Science. The lesson should start with. Vocabulary: • Motion - a change in an object's position • Relative Position - an object's position related to another object nearby • Speed - a way to describe how fast an object is moving. Seabirds! Identification Key BLM 1-6 Case study: Pond Ecosystem Food Web Worksheet Variables worksheet and answers Salty Seeds Core Lab Chapter 2 Review Quizlet Review More Chapter 2 Review and answers Chapter 3 NEW Notes booklet and Answers - Includes Unit 1 Review Slideshow, Chapter 2 OLD Notes Booklet Chapter 3 Fake Review Quiz and Answers. 2 mitosis 3rd/4th- Watched Wolf video (Predator/prey) and answered division, and the process of differentiation. All organisms need a source of energy for their life processes. Research Project (50 pts) word World map - project illustration pdf Unit 5. An object in motion continues to move with the same velocity unless acted on by an unbalanced force. Unit One Quiz. concluded that animals and, in fact, all living things are made of cells 5. Explain why deep water near the equator has a higher salinity than other parts of the ocean. Tìm kiếm 1 2 the nature of science answer key , 1 2 the nature of science answer key tại 123doc - Thư viện trực tuyến hàng đầu Việt Nam UNIT 2 THE DATE OF BIRTH Period 7(1, 2, 3) pps. Economics is the study of _____. The Nature of Science I. Make sure to remember your password. MAIN IDEA: Restriction enzymes cut DNA. The Homeschool Scientist taking the fear out of and putting the fun into homeschool science. A scientific hypothesis is more than just a guess, it is a prediction based on reason, evidence, and logic. When chlorine occurs in nature, there are three atoms of chlorine-35 for every one atom of chlorine-37. ) Unit 1: Investigating Earth Chapter 1 Earth as a System Chapter 2 The Nature of Science Chapter 3 Models of Earth. Be able to identify and explain the 5 characteristics of living things. net force 9. Nature of Science Unit Study Guide Use all of your note packets up to this point to complete the study guide. notebook 8 October 22, 2012 Sep 2­7:55 PM 6 What single factor can best determine the water quality of a stream when doing a bio assessment sample? A The number of "group one" organisms present. Reviewing your labs may also be helpful. Some steps may be repeated. Remind Sign Up Info. The graph shows the results of Jane’s study. 4) Answers will vary. He explains how environmental science studies the interaction between earth and human systems. This unit is designed to take approximately two weeks, but could easily be adapted or expanded to take longer with additional time for activities and practice. Write the answer on your answer sheet and fill in the gridable. Unit Study Guide: Study Guide: Nature of Science Subpages (7): Lesson 1: Types of Science Lesson 2: Matter & Measurement Lesson 3: Density Lesson 4: Metric System Lesson 5: Graphing Lesson 5: Unit Conversions Lesson 6: Scientific Method. Chapter 2 – The Structure of Matter and the Chemical Elements 11 Section 2. Home | Health | Life Science | Woodland Hills Academy: Unit 1- The Study of Living Things. segment of DNA 5. Benchmark: SC. Copy and complete the classification scheme in Figure 1. UNIT 1: Living Things and Their Environment Introduction At this point, students have already learned in Grade 8 how the body breaks down food into forms that can be absorbed through the digestive system and then transported to each cell, which was on the other hand discussed in Grade 7 to be the basic unit of life. c A(n) IL divides an angle in half. ServSafe and the ServSafe. 6) Answers will vary. docx Created Date: 8/23/2017 5:01:18 PM. In competition, weightlifter 1 lifts 150 kg weight from the floor. Contact Me. Chapter 2 Study Guide. Use the periodic table and the Appendices to help you find the answers in the most efficient way. Unit 11 Study Guide Answer Key Human Systems SECTION 28. astronomy 3. circulatory system. The crosscutting concept of scale, proportion, and quantity is called out as an organizing concept for these disciplinary core ideas. The following guide will be updated periodically with hyperlinks to excellent resources. 7 %; 97% 2. The first part of the study guide has all the major vocabulary words for the unit in sequential order according to the lecture Powerpoint. In the space below, draw a nucleotide and label its three parts using words and arrows.