Answer Key - Gather thesaurus - Home

1 Answer Key1 Copyright by McDougal Littell, a division of Houghton Mifflin CompanyVocabulary PracticeA. Categorize , L; cell, L;species, L; transgenic, B;biotechnology, T; moleculargenetics, , I; biosphere,E; system, B; metabolism,I; ecosystem, E; biology , , G; organism,I; cell, B; adaptation, B;biosphere, G; evolution, GB. Vector tools and senses tostudy the support, and areaccounted for lead proposed explanation for awide range of observationssupported by a large amountof proposed Answer for ascientific of independentand dependent variablesto find that is changedto observe an effect on thedependent that are observed;affected by that are keptfrom changing during that arerecorded and analyzed totest a hypothesisC.

2 Stepped-Out study of allorganisms; helps to makeinformed decisions; stillhas many that provides anenlarged image of anobject; led to discoveryof cells; electronmicroscopes providegreater magnifications thanlight in living things overtime; change in geneticmakeup of a population;accounts for unity anddiversity of inherited trait thatgives an advantage to anindividual organism; passedon to future generations;different adaptations indifferent genetic material in allorganisms; instructions forgrowth and development;passed on of DNA thatstores genetic information;studied andchangedthrough molecular genetics;faulty ones can be and comparisonof genomes; computerdatabases store theinformation; entire DNAsequences from organismsD.

3 Words in small to be of of the many living and the type of living thing thatcan has genes from an Answer to aquestionAnswer KeyCHAPTER1 biology IN THE 21ST CENTURYV ocabulary Practicebiosphereecosystemdependent variablebiodiversityhomeostasisconstants peciesevolutiontheorybiologyadaptationmi croscopeorganismobservationgenecelldatam olecular geneticsmetabolismhypothesisgenomicsDNAe xperimentbiotechnologysystemindependent variabletransgenicA. Categorize WordsFor the terms below, writeLnext to words that can describeliving things.

4 WriteTnext to words that can describe technology. WriteBnext to wordsthat can describe geneticsFor the terms below, writeEnext to words that can describe the external environment ofliving things. WriteInext to words that can describe the internal environment of livingthings. WriteBnext to words that can describe the terms below, writeGnext to words that are related to groups of living things. WriteInext to words that describe individual living things. WriteBnext to words that can 1 Resource BookVocabulary Practice27 McDougal Littell BiologyCopyright McDougal Littell/Houghton Mifflin 1 biology in the 21st CenturyVOCABULARY PRACTICE, CONTINUEDB.

5 Vector VocabularyDefine the words in the boxes. On the line across each arrow,write a phrase that describes how the words in the boxes are related to each 1. PracticeUnit 1 Resource BookMcDougal Littell BiologyCHAPTER 1 biology in the 21st CenturyCopyright McDougal Littell/Houghton Mifflin PRACTICE, CONTINUEDC. Stepped-OutVocabularyDefine each word. Then write two additional factsthat are related to the INFORMATION chemical energy is neededExamplemetabolismallchemicalproces sesthatbuild up or break down materialsin living thingsanimals eat other organismsto get their chemical 1 Resource BookVocabulary Practice29 McDougal Littell BiologyCopyright McDougal Littell/Houghton Mifflin 1 biology in the 21st CenturyVOCABULARY PRACTICE, CONTINUEDD.

6 Wordsin ContextAnswer the questions to show your understanding of thevocabulary I use amicroscope,do I see thingstoo small to be seen or things too far away tobe seen? maintenance of constant conditions or all of the chemical processesthat build up and break down materials? is theindependent variablein an experiment, the cause or the effect? ageneall of an organism s DNA or only a segment of DNA? anadaptationin biology made by choice or is it inherited? u l d aconstantbe manipulated or kept the same in an experiment?

7 Atheoryanswer one scientific question or does it explain many observations? I am in anecosystem,do I interact with living things, nonliving things, or bothliving and nonliving things? would morebiodiversitybefound,nearEarth sequatorornearEarth spoles? is aspecies,a group of parts that interact to form a whole or a type of livingthings that can reproduce by interbreeding? atransgenicorganism travel a lot or does it have genes from a different type ofliving thing? I form ahypothesis,do I propose an Answer to a question or do I use negativefeedback?

8 30 Vocabulary PracticeUnit 1 Resource BookMcDougal Littell BiologyCHAPTER 1 biology in the 21st CenturyCopyright McDougal Littell/Houghton Mifflin Company.