AP Biology Flash Review Is Designed to Help Howyou Prepare to Use Forthis and Book Succeed on the AP Biology Exam

Total Page:16

File Type:pdf, Size:1020Kb

AP Biology Flash Review Is Designed to Help Howyou Prepare to Use Forthis and Book Succeed on the AP Biology Exam * . .AP . BIOLOGY. Flash review APBIOL_00_ffirs_i-iv.indd 1 12/20/12 9:54 AM OTHER TITLES OF INTEREST FROM LEARNINGEXPRESS AP* U.S. History Flash Review ACT * Flash Review APBIOL_00_ffirs_i-iv.indd 2 12/20/12 9:54 AM AP* BIOLOGY . Flash review ® N EW YORK APBIOL_00_ffirs_i-iv.indd 3 12/20/12 9:54 AM The content in this book has been reviewed and updated by the LearningExpress Team in 2016. Copyright © 2012 LearningExpress, LLC. All rights reserved under International and Pan American Copyright Conventions. Published in the United States by LearningExpress, LLC, New York. Printed in the United States of America 987654321 First Edition ISBN 978-1-57685-921-6 For more information or to place an order, contact LearningExpress at: 2 Rector Street 26th Floor New York, NY 10006 Or visit us at: www.learningexpressllc.com *AP is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product. APBIOL_00_ffirs_i-iv.indd 4 12/20/12 9:54 AM Contents 1 . .. 11 IntRoDUCtIon 57 . ... A. 73 . ... B. 131 . ... C. 151 . .... D. 175 . .... e. 183 . .... F. 205 . .... G. 225 . .... H. 245 . .... I. 251 . .... K. 267 . .... L. 305 . .... M. [ v ] . .... n. APBIOL_00_fcont_v-viii.indd 5 12/20/12 9:55 AM 329 343 . .... o. 411 . .... P. 413 . .... Q. 437 . .... R. 489 . .... s. 533 . .... t. 533 . .... U. 539 . .... V. 541 . .... X. .... Z. [ vi ] APBIOL_00_fcont_v-viii.indd 6 12/20/12 9:55 AM * . .AP . BIOLOGY. FLAsH.ReVIew APBIOL_00_fcont_v-viii.indd 7 12/20/12 9:55 AM Blank Page 8 APBIOL_00_fcont_v-viii.indd 8 12/20/12 9:55 AM IntroductIon The AP Biology exam tests students’ knowledge Aboutof core themes, the AP topics, Biology and concepts Exam covered in a typical high school AP Biology course, which offers students the opportunity to engage in college-level biology study. Students who are successful on the AP Biology exam have the opportunity to earn college credit and ad- vanced course placement at thousands of col- leges across the country—and success on the exam really helps make a great impression on college admissions committees. The AP Biology exam is three hours long and consists of the following sections: ■■■ A 100-question multiple-choice sec- tion, which students are given 80 minutes to complete. Questions are [ 1 ] APBIOL_01_INTRO_1-10.indd 1 12/20/12 9:56 AM designed to assess students’ knowl- edge of material covered across the entire AP Biology course (aligned with the course overview provided in this section). The multiple-choice section accounts for 60% of a student’s overall exam grade. ■■ A 10-minute reading period, in prepa- ration for the free-response section of the exam. ■■■ A free-response section, which includes four separate biology questions that students must complete within the 90 minutes allocated. The essays can be based on any of the main content areas covered in an AP Biology course (aligned with the course overview pro- vided in this section), and will assess one’s ability to analyze and interpret laboratory and course lecture data and information. The free-response section accounts for the remaining 40% of a student’s overall exam grade. As previously indicated, the multiple-choice section of the AP Biology exam accounts for How the AP Biology Exam Is Scored [ 2 ] APBIOL_01_INTRO_1-10.indd 2 12/20/12 9:56 AM 60% of a student’s overall score; the remain- ing 40% is based on performance on the free- response section. These scores are then com- bined, and the weighted raw scores are turned into a final composite score, which is based on a five-point scale: 5—Extremely well qualified 4—Well qualified 3—Qualified 2—Possibly qualified 1—No recommendation Typically, a score of three or above indicates that a student has achieved a good grasp of the material covered in his or her AP Biology course. AP Biology courses are designed to cover a APvariety Biology of specific course topic overview areas and themes. The AP Biology exam is designed to deter- mine how well you have grasped and ab- sorbed the material covered throughout the course. The following is a brief AP Biology course overview. [ 3 ] APBIOL_01_INTRO_1-10.indd 3 12/20/12 9:56 AM AP Biology courses—and the AP Biology exam—typically cover the following major topic areas: Molecules and Cells Chemistry of Life ■■■ Water ■■ Organic molecules in organisms ■■■ Free energy changes ■■■ Enzymes Cells ■■ Prokaryotic and eukaryotic cells ■■ Membranes ■■ Subcellular organization ■■ Cell cycle and its regulation Cellular Energetics ■■ Coupled reactions ■■ Fermentation and cellular respiration ■■ Photosynthesis Heredity and Evolution Heredity ■■■ Meiosis and gametogenesis ■ Eukaryotic chromosomes ■■ Inheritance patterns [ 4 ] APBIOL_01_INTRO_1-10.indd 4 12/20/12 9:56 AM Molecular Genetics ■■■ RNA and DNA structure and function ■■ Gene regulation ■■ Mutation ■■ Viral structure and replication ■■■ Nucleic acid technology and applications Evolutionary Biology ■■ Early evolution of life ■ Evidence for evolution ■■■ Mechanisms of evolution Organisms and Populations Diversity of Organisms ■■■ Evolutionary patterns ■■ Survey of the diversity of life ■■ Phylogenetic classification ■ Evolutionary relationships Structure and Function of Plants and Animals ■■ Reproduction, growth, and development ■■ Structural, physiological, and behavioral adaptations ■■ Response to the environment [ 5 ] APBIOL_01_INTRO_1-10.indd 5 12/20/12 9:56 AM Ecology ■■■ Population dynamics ■ Communities and ecosystems ■■■ Global issues Across the material covered in a typical AP Biology course, the following major themes are addressed: ■■■ Science as a process ■■ Evolution ■■■ Energy transfer ■■■ Continuity and change ■■■ Relationship of structure to function ■ Regulation ■■ Interdependence in nature ■■ Science, technology, and society In addition to regular course lectures, AP Biology courses include a significant proportion of laboratory work (typically 25% to 30%), which provides students the opportunity to see biology concepts in action and apply what they’ve learned in hands-on activities. Detailed information on both the AP Biology exam and the AP Biology course is [ 6 ] APBIOL_01_INTRO_1-10.indd 6 12/20/12 9:56 AM available on the official College Board website: http://apcentral.collegeboard.com/apc/ public/repositor y/ap-biolog y-course -description.pdf AP Biology Flash Review is designed to help Howyou prepare to use forthis and Book succeed on the AP Biology exam. It contains 600 of the most commonly covered terms on the exam, along with their definitions, for quick and effective study and review. On one side of the page are three essential AP Biology terms; on the reverse side are their definitions and/or explanations. The terms are alphabetized for easy access. Please note that this book is not designed to give an exhaustive review of the entire scope of the terms and concepts inside; it is meant to give you a general overview of biology terms and concepts that you will likely need to know in order to succeed on the AP Biology exam. Being fully aware of the essential terms covered in this book will put you in a great position for success on test day. [ 7 ] APBIOL_01_INTRO_1-10.indd 7 12/20/12 9:56 AM usingAP Biology this Flash Book Review to worksPrepare well asfor a stand-the APalone Biology study tool, Exam but it is recommended that it be used to supplement your other course materials and lecture notes as you prepare for the AP exam. The following are some sugges- tions for making the most of this effective re- source as you structure your study plan: ■■ Do not try to learn or memorize the 600 terms covered in this book all at once. Cramming is not the most ef- fective approach to test preparation. The best approach is to build a realistic study schedule that lets you review around 10 to 15 terms each day. Review a set of terms and then quiz yourself to see how well you’ve learned them. ■■ Mark the terms that you have trouble with, so that they will be easy to return to later for further study. ■■ As you study your course materials in preparation for the AP Biology exam, you may come across terms that are unfamiliar or difficult for you. We recommend that you consult this book [ 8 ] APBIOL_01_INTRO_1-10.indd 8 12/20/12 9:56 AM for a quick review of the terms and concepts that often appear on the AP Biology exam. ■■ Make the most of this book’s portability—take it with you for study- ing on trips, between classes, while commuting, or whenever you have some free time. [ 9 ] APBIOL_01_INTRO_1-10.indd 9 12/20/12 9:56 AM Blank Page 18 APBIOL_01_INTRO_1-10.indd 10 12/20/12 9:56 AM A ABIOTIC FACTOR • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • ABSORPTION SPECTRUM • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • ACIDIC BIOLOGY FLASH REVIEW * GRE VOCABULARY AP GRE VOCABULARY [ 11 ] APBIOL_02_11-552.indd 11 12/20/12 9:57 AM A Core, inorganic environmental components, including physical, chemical, and geological factors, that have a measurable impact on their respective ecosystems. Abiotic factors have varying effects on living organisms and nonliv- ing elements of the biosphere. The range of discernible electromagnetic radiation, across the electromagnetic spec- trum, that a specific substance or absorbing medium allows to pass through. The amount of radiation that passes through is based on the unique chemical makeup of the substance, AP and serves as an identifying factor. * BIOLOGY FLASH REVIEW An identifying factor that marks a certain sub- stance as possessing the chemical properties of an acid.
Recommended publications
  • Ecosystem Structure and Function. Dr
    TOPIC: - ECOSYSTEM STRUCTURE AND FUNCTION. DR. ABHAY KRISHNA SINGH PAPER NAME: - ENVIRONMENTAL GEOGRAPHY SUBJECT: - GEOGRAPHY SEMESTER: - M.A. –IV PAPER CODE: - (GEOG. 403) UNIVERSITY DEPARTMENT OF GEOGRAPHY, DR. SHYMA PRASAD MUKHERJEE UNIVERSITY, RANCHI. Environmental Sciences INTRODUCTION: - All organisms need energy to perform the essential functions such as maintenance, growth, repair, movement, locomotion and reproduction; all of these processes require energy expenditure. The ultimate source of energy for all ecological systems is Sun. The solar energy is captured by the green plants (primary producers or autotrophs) and transformed into chemical energy and bound in glucose as potential energy during the process of photosynthesis. In this stored form, other organisms take the energy and pass it on further to other organisms. During this process, a reasonable proportion of energy is lost out of the living system. The whole process is called flow of energy in the ecosystem. It is the amount of energy that is received and transferred from organism to organism in an ecosystem that modulates the ecosystem structure. Without autotrophs, there would be no energy available to all other organisms that lack the capability of fixing light energy. A fraction i.e. about 1/50 millionth of the total solar radiation reaches the earth’s atmosphere. About 34% of the sunlight reaching the earth’s atmosphere is reflected back into the atmosphere, 10% is held by ozone layer, water vapors and other atmospheric gases. The remaining 56% sunlight reaches the earth’s surface. Only a fraction of this energy reaching the earth’s surface (1 to 5%) is used by green plants for photosynthesis and the rest is absorbed as heat by ground vegetation or water.
    [Show full text]
  • 7.014 Handout PRODUCTIVITY: the “METABOLISM” of ECOSYSTEMS
    7.014 Handout PRODUCTIVITY: THE “METABOLISM” OF ECOSYSTEMS Ecologists use the term “productivity” to refer to the process through which an assemblage of organisms (e.g. a trophic level or ecosystem assimilates carbon. Primary producers (autotrophs) do this through photosynthesis; Secondary producers (heterotrophs) do it through the assimilation of the organic carbon in their food. Remember that all organic carbon in the food web is ultimately derived from primary production. DEFINITIONS Primary Productivity: Rate of conversion of CO2 to organic carbon (photosynthesis) per unit surface area of the earth, expressed either in terns of weight of carbon, or the equivalent calories e.g., g C m-2 year-1 Kcal m-2 year-1 Primary Production: Same as primary productivity, but usually expressed for a whole ecosystem e.g., tons year-1 for a lake, cornfield, forest, etc. NET vs. GROSS: For plants: Some of the organic carbon generated in plants through photosynthesis (using solar energy) is oxidized back to CO2 (releasing energy) through the respiration of the plants – RA. Gross Primary Production: (GPP) = Total amount of CO2 reduced to organic carbon by the plants per unit time Autotrophic Respiration: (RA) = Total amount of organic carbon that is respired (oxidized to CO2) by plants per unit time Net Primary Production (NPP) = GPP – RA The amount of organic carbon produced by plants that is not consumed by their own respiration. It is the increase in the plant biomass in the absence of herbivores. For an entire ecosystem: Some of the NPP of the plants is consumed (and respired) by herbivores and decomposers and oxidized back to CO2 (RH).
    [Show full text]
  • The Relationship of PSAT/NMSQT Scores and AP Examination Grades
    Research Notes Office of Research and Development RN-02, November 1997 The Relationship of PSAT/NMSQT Scores and AP® Examination Grades he PSAT/NMSQT, which measures devel- Recent analyses have shown that student per- oped verbal and quantitative reasoning, as formance on the PSAT/NMSQT can be useful in Twell as writing skills generally associated identifying additional students who may be suc- with academic achievement in college, is adminis- cessful in AP courses. PSAT/NMSQT scores can tered each October to nearly two million students, identify students who may not have been initially the vast majority of whom are high school juniors considered for an AP course through teacher or and sophomores. PSAT/NMSQT information has self-nomination or other local procedures. For been used by high school counselors to assist in many AP courses, students with moderate scores advising students in college planning, high school on the PSAT/NMSQT have a high probability of suc- course selection, and for scholarship awards. In- cess on the examinations. For example, a majority formation from the PSAT/NMSQT can also be very of students with PSAT/NMSQT verbal scores of useful for high schools in identifying additional 46–50 received grades of 3 or above on nearly all of students who may be successful in Advanced the 29 AP Examinations studied, while over one- Placement courses, and assisting schools in deter- third of students with scores of 41–45 achieved mining whether to offer additional Advanced grades of 3 or above on five AP Examinations. Placement courses. There are substantial variations across AP subjects that must be considered.
    [Show full text]
  • Model-Based Analysis of the Energy Fluxes and Trophic Structure of a Portunus Trituberculatus Polyculture Ecosystem
    Vol. 9: 479–490, 2017 AQUACULTURE ENVIRONMENT INTERACTIONS Published December 5 https://doi.org/10.3354/aei00247 Aquacult Environ Interact OPENPEN ACCESSCCESS Model-based analysis of the energy fluxes and trophic structure of a Portunus trituberculatus polyculture ecosystem Jie Feng1, Xiang-Li Tian1,*, Shuang-Lin Dong1, Rui-Peng He1, Kai Zhang1, Dong-Xu Zhang1, Qing-Qi Zhang2 1The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao 266003, PR China 2Marine Fishery Technology Guiding Office of Ganyu, Lianyungang 222100, PR China ABSTRACT: We constructed a quantitative Ecopath model of a trophic network to evaluate the energy flow and properties in a polyculture ecosystem containing 4 species (swimming crab Por- tunus trituberculatus, white shrimp Litopenaeus vannamei, short-necked clam Ruditapes philip- pinarum, and redlip mullet Liza haematochila) over a 90 d experimental period. The model con- tained 10 consumers, 4 detritus groups, and 4 primary producers. Ecotrophic efficiency values indicated that the system had high energy utilization efficiency. However, benthic bacteria con- verted the largest amount of energy back to the detritus groups, which had the lowest ecotrophic efficiency (0.01). When aggregating the network to discrete trophic levels (TLs), most of the throughput and biomass of the system were distributed on the first 2 TLs; consequently, there was high energy transfer efficiency between TL I and II (81.98%). The trophic flow of this ecosystem was dominated by energy that originated from the detritus groups (73.77%). Imported artificial food was particularly important for the trophic flow of the total ecosystem, contributing 31.02% to total system consumption.
    [Show full text]
  • Plants Are Producers! Draw the Different Producers Below
    Name: ______________________________ The Unique Producer Every food chain begins with a producer. Plants are producers. They make their own food, which creates energy for them to grow, reproduce and survive. Being able to make their own food makes them unique; they are the only living things on Earth that can make their own source of food energy. Of course, they require sun, water and air to thrive. Given these three essential ingredients, you will have a healthy plant to begin the food chain. All plants are producers! Draw the different producers below. Apple Tree Rose Bushes Watermelon Grasses Plant Blueberry Flower Fern Daisy Bush List the three essential needs that every producer must have in order to live. © 2009 by Heather Motley Name: ______________________________ Producers can make their own food and energy, but consumers are different. Living things that have to hunt, gather and eat their food are called consumers. Consumers have to eat to gain energy or they will die. There are four types of consumers: omnivores, carnivores, herbivores and decomposers. Herbivores are living things that only eat plants to get the food and energy they need. Animals like whales, elephants, cows, pigs, rabbits, and horses are herbivores. Carnivores are living things that only eat meat. Animals like owls, tigers, sharks and cougars are carnivores. You would not catch a plant in these animals’ mouths. Then, we have the omnivores. Omnivores will eat both plants and animals to get energy. Whichever food source is abundant or available is what they will eat. Animals like the brown bear, dogs, turtles, raccoons and even some people are omnivores.
    [Show full text]
  • Nile Tilapia and Milkfish in the Philippines
    FAO ISSN 2070-7010 FISHERIES AND AQUACULTURE TECHNICAL PAPER 614 Better management practices for feed production and management of Nile tilapia and milkfish in the Philippines Cover photographs: Top left: Harvest of milkfish in Panabo Mariculture Park, Panabo City, Davao, Philippines (courtesy of FAO/Thomas A. Shipton). Top right: Harvest of Nile tilapia in Taal Lake in the province of Batangas, the Philippines (courtesy of FAO/Mohammad R. Hasan). Bottom: A view of cage and pen culture of milkfish in a large brackishwater pond, Dagupan, Philippines. (courtesy of FAO/Mohammad R. Hasan). Cover design: Mohammad R. Hasan and Koen Ivens. FAO FISHERIES AND Better management practices AQUACULTURE TECHNICAL for feed production and PAPER management of Nile tilapia 614 and milkfish in the Philippines by Patrick G. White FAO Consultant Crest, France Thomas A. Shipton FAO Consultant Grahamstown, South Africa Pedro B. Bueno FAO Consultant Bangkok, Thailand and Mohammad R. Hasan Aquaculture Officer Aquaculture Branch FAO Fisheries and Aquaculture Department Rome, Italy FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Rome, 2018 The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations (FAO) concerning the legal or development status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The mention of specific companies or products of manufacturers, whether or not these have been patented, does not imply that these have been endorsed or recommended by FAO in preference to others of a similar nature that are not mentioned.
    [Show full text]
  • 3.2 Energy Flows Through Ecosystems [Notes/Highlighting]
    Printed Page 60 3.2 Energy flows through ecosystems [Notes/Highlighting] To understand how ecosystems function and how to best protect and manage them, ecosystem ecologists study not only the biotic and abiotic components that define an ecosystem, but also the processes that move energy and matter within it. Plants absorb energy directly from the Sun. That energy is then spread throughout an ecosystem as herbivores (animals that eat plants) feed on plants and carnivores (animals that eat other animals) feed on herbivores. Consider the Serengeti Plain in East Africa, shown in FIGURE 3.3. There are millions of herbivores, such as zebras and wildebeests, in the Serengeti ecosystem, but far fewer carnivores, such as lions (Panthera leo) and cheetahs (Acinonyx jubatus), that feed on those herbivores. In accordance with the second law of thermodynamics, when one organism consumes another, not all of the energy in the consumed organism is transferred to the consumer. Some of that energy is lost as heat. Therefore, all the carnivores in an area contain less energy than all the herbivores in the same area because all the energy going to the carnivores must come from the animals they eat. To better understand these energy relationships, let’s trace this energy flow in more detail. Figure 3.3 Serengeti Plain of Africa. The Serengeti ecosystem has more plants than herbivores, and more herbivores than carnivores. Previous Section | Next Section 3.2.1 Photosynthesis and Respiration Printed Page 60 [Notes/Highlighting] Nearly all of the energy that powers ecosystems comes from the Sun as solar energy, which is a form of kinetic energy.
    [Show full text]
  • Chapter 15 Communities and Ecosystems Rosech15 0104043 437-474 2P 11/18/04 3:07 PM Page 439
    RoseCh15_0104043_437-474_2p 11/18/04 2:32 PM Page 437 15 The feeding relationships between species can often be complicated. Communities and Ecosystems hen scientists first began studying bio- dioxide levels, which are covered in Chapter 16 logical communities, they were so fasci- (The Biosphere and the Physical Environment). Wnated with the interactions and The coordination and integration of biological dependencies between species that they saw the bi- communities has vast implications for the Earth. ological community as a superorganism. Whole For this reason, there are few biological topics as species were viewed as organs that performed spe- important for the future of life on Earth as the func- cific functions for the complete ecological superor- tioning of ecosystems. In this chapter, we survey ganism. The integration and communication how ecosystems function, from the flow of energy in between these “organs” was thought to be deliber- Module 15.1 (Energy Flow) and the recycling of nu- ate and well tuned. One way to think of this idea is trients in Module 15.15 (Ecosystems) to the porten- to imagine a stitched-together Frankenstein, each tous problem of the fragility of ecosystems. In sewn-on body part a distinct species. Modules 15.8 (Community Organization) and 15.4 Today biologists find the analogy between bio- (Equilibrium and Nonequilibrium Communities), logical communities and organisms superficial. To we consider the factors that determine the number be sure, there are populations within communities of species in a community. Surprisingly, in some that are highly dependent on each other. And it is communities predation and environmental distur- also true that biological communities and their bance may promote increased species diversity.
    [Show full text]
  • Formulation of Diet Using Conventional and Non
    OPEN ACCESS Freely available online e Rese tur arc ul h c & a u D q e A v e f l o o Journal of l p a m n r e u n o t J ISSN: 2155-9546 Aquaculture Research & Development Research Article Formulation of Diet Using Conventional and Non-Conventional Protein Sources Maria Lizanne AC*, Jeana Ida Rodrigues, Miriam Triny Fernandes Carmel College of Arts, Science & Commerce for Women, Nuvem, Salcette Goa-403 713, India ABSTRACT A 60-day feeding experiment was conducted on Swordtail, Xiphophorus helleri to correlate the growth and the crude protein percentage of the feed. Nine experimental diets (Treatments) were formulated using different locally and cheaply available conventional and nonconventional protein sources keeping the basal ingredients same. These diets were tested on three replicate groups of 10 fishes (initial body weight: 0.7 ± 0.5 g) bred in circular fiber reinforced plastic tanks of 120 liter capacity with 100 liter of seasoned de-chlorinated tap water. Fishes were fed 3% of their body weight. The growth performance of Swordtail was studied in terms of Weight Gain, Feed Conversion Ratio (FCR), Specific Growth Rate (SGR%/day) and Protein Efficiency Ratio (PER). The results indicated that Weight Gain was more in the Treatment that contained Chicken Waste and least in the Treatment that contained Marine Fish Waste. Specific growth rate%/per day and Protein efficiency ratio showed similar results. The Feed conversion ratio was greater in Treatment that contained Marine Fish Waste and least in Treatment that contained Chicken Waste. The study suggests that Chicken Waste as a major source of Protein can be effectively considered in the formulation of practical diet for better growth of Swordtail, Xiphophorus helleri.
    [Show full text]
  • Nature's Garbage Collectors
    R3 Nature’s Garbage Collectors You’ve already learned about producers, herbivores, carnivores and omnivores. Take a moment to think or share with a partner: what’s the difference between those types of organisms? You know about carnivores, which are animals that eat other animals. An example is the sea otter. You’ve also learned about herbivores, which only eat plants. Green sea turtles are herbivores. And you’re very familiar with omnivores, animals that eat both animals and plants. You are probably an omnivore! You might already know about producers, too, which make their food from the sun. Plants and algae are examples of producers. Have you ever wondered what happens to all the waste that everything creates? As humans, when we eat, we create waste, like chicken bones and banana peels. Garbage collectors take this waste to landfills. And after our bodies have taken all the energy and vitamins we need from food, we defecate (poop) the leftovers that we can’t use. Our sewerage systems take care of this waste. But what happens in nature? Sea otters and sea turtles don’t have landfills or toilets. Where does their waste go? There are actually organisms in nature that take care of these leftovers and poop. How? Instead of eating fresh animals or plants, these organisms consume waste to get their nutrients. There are three types of these natural garbage collectors -- scavengers, detritivores, and decomposers. You’ve probably already met (and maybe even eaten) a few of them. Scavengers Scavengers are animals that eat dead, decaying animals and plants.
    [Show full text]
  • Technical Efficiency, Ecological Efficiency and Grassland Ecological
    Technical Efficiency, Ecological Efficiency and Grassland Ecological Performance of Grazing in China Wei Huang1*, Bernhard Brümmer1, Lynn Huntsinger2 1 Department for agricultural economics and rural development, University of Goettingen, Germany 2 Department of environmental science, policy, and management, University of California at Berkeley, US * Correspondent email: [email protected] Paper prepared for presentation at the EAAE 2014 Congress ‘Agri-Food and Rural Innovations for Healthier Societies’ August 26 to 29, 2014 Ljubljana, Slovenia Copyright 2014 by authors. All rights reserved. Readers may make verbatim copies of this document for non-commercial purposes by any means, provided that this copyright notice appears on all such copies Abstract: Incorporating the ecological variable of grassland Net Primary Productivity (NPP) into the production function - to be representative of grassland quality - is a new step toward the ecological efficiency analysis under the field of productivity and efficiency analysis. We measure the technical efficiency, ecological performance indicator and ecological efficiency of grazing using a multi-outputs and multi-inputs stochastic input-oriented distance function. The average technical efficiency is estimated to be 0.90 when taking grassland NPP into account, implying that cost of grazing inputs can be decreased by 10% without any deduction of outputs. The ecological efficiency is estimated to be 0.83 and the average ecological performance indicator is 0.17. Key words: Technical efficiency; Ecological efficiency; Ecological performance indicator; Net primary productivity (NPP); input distance function. 1. Introduction The concerns about environmental problems pushed by local economic development in developing countries received a lot of attention in recent years; as one of the main land use types on earth is grassland, the relationship between environmental problems caught by inappropriate grassland use and local economic development became a popular topic.
    [Show full text]
  • Suggested Course Sequence for Science
    Suggested Course Sequence for Science For On-level Students wanting an Endorsement (other than STEM): 11th 12th Physics, 10th Choice of: Physics, AP 9th Chemistry, or Chemistry Physics 1 (with prior Biology ESS, ES, or CTE or IPC physics), ESS, ES, or CTE Science Credit Science Credit Course* Course* For Struggling Math/Science Students: 10th 11th 12th 9th Integrated Chemistry, Physics, ESS, ES, or CTE Biology Physics and Physics, ESS, ES, Science Course* Chemistry (IPC) or CTE Science Course* For Students wanting a STEM Endorsement: 12th AP Biology, AP 9th 10th 11th Chemistry, AP Physics PAP Biology or PAP Chemistry AP Physics 1 or 1, AP Physics C, ESS, Biology or Chemistry Physics ES, or CTE Science Course* For Advanced and Accelerated Science Students: 10th 11th 12th AP Physics C 9th PAP Chemistry AP Physics 1 and and/or Anatomy & PAP Biology and AP Biology** AP Chemistry** Physiology For students graduating in 2015-2016 on the Recommended or Distinguished High School Plan, MUST take Biology, Chemistry and Physics plus another upper level Science Class. *CTE Science Credit Courses include Anatomy and Physiology (Level 2 Course like Pre-AP), Microbiology with Pathophysiology (1 semester each, taken together), Forensics, and Advanced Plant and Soil Science ESS is Earth, Space Science ES is Environmental Systems **Double enrollment in science classes can begin at any point in the sequence for advanced students. A note about mathematics and science: Many upper division science courses require varying degrees of use of mathematics. For students seeking to get the most out of their science courses, use the following suggested pre- and co- requisites.
    [Show full text]