Key Vocabulary Word Textbook Definition Your Definition .

Name: Class: Date: Due:Key Vocabulary Word Textbook DefinitionYour DefinitionDrawing/Roots/ExampleSection 13.1: Ecologists Study systemBiomeObservationDirect SurveyIndirect SurveyAdapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B1Ecology

Name: Class: Date: Due:Key Vocabulary Word Textbook DefinitionYour DefinitionDrawing/Roots/ExampleSection 13.2: Biotic and Abiotic FactorsBioticAbioticBiodiversityKeystone SpeciesSection 13.3: Energy in osynthesisAdapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B2Ecology

Name: Class: Date: Due:Key Vocabulary Word Textbook DefinitionYour DefinitionDrawing/Roots/ExampleSection 13.4: Food Chains and Food WebsFood ChainCarnivoreDetritivoreSpecialistTrophic LevelHerbivoreOmnivoreDecomposerGeneralistFood WebAdapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B3Ecology

Name: Class: Date: Due:Key Vocabulary Word Textbook DefinitionYour DefinitionDrawing/Roots/ExamplePrimary ConsumerSecondary ConsumerTertiary ConsumerSection 13.5: Cycling of MatterHydrologic CycleBiogeochemical CycleNitrogen FixationSection 13.6: Pyramid ModelsBiomassEnergy PyramidAdapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B4Ecology

Name: Class: Date: Due:13.1: Ecologists Study Relationships1) Complete the following table with two benefits and a drawback of conducting an experiment in thelaboratory compared with conducting an experiment in the field.ExperimentBenefitDrawbackLaboratoryField2) When might a scientist use a model as a research method?Key Concepts: Below each key concept, write it in your own words3) Ecology is the study of the relationship among organisms and their environment.4) Ecologists study environments at different levels of organization.5)Ecological research methods include observation, experimentation and modeling.Adapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B5Ecology

Name: Class: Date: Due:13.2: Biotic and Abiotic Factors6) Use the terms below to complete the concept map.7) List a few reasons why a beaver is an example of a keystone species.8) Take another look at the Visual Vocab in Section 2. In architecture, a keystone is the stone at the center of anarch that holds the arch together. How does this definition relate to a keystone species?Key Concepts: Below each key concept, write it in your own words9) Every ecosystem includes both living and nonliving factors.10) An ecosystem includes both biotic and abiotic factors.11) Changing one factor in an ecosystem can affect many other factors.Adapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B6Ecology

Name: Class: Date: Due:13.3: Energy in Ecosystems12) are organisms that get their energy from resources,meaning they make their own food. These organisms are also called .13) are organisms that get their energy by otherorganisms. These organisms are also called .14) Why are producers so important to an ecosystem?15) Why is the Sun important to both producers and consumers?16) Create a Venn diagram or a Y-Chart to compare and contrast photosynthesis and chemosynthesis.Key Concepts: Below each key concept, write it in your own words17) Life in an ecosystem requires a source of energy.18) Producers provide energy for other organisms in an ecosystem.19) Almost all producers obtain energy from sunlight.Adapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B7Ecology

Name: Class: Date: Due:13.4: Food Chains and Food Webs20) A food chain follows the connection between one and a single chain ofwithin an .21) How is a food web different from a food chain?22) What happens to energy at each link in a food web?23) What type of organism provides the base of a food web?Key Concepts: Below each key concept, write it in your own words24) Food chains and food webs model the flow of energy in an ecosystem.25) A food chain is a model that shows a sequence of feeding relationships.26) A food web shows a complex network of feeding relationships.Adapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B8Ecology

Name: Class: Date: Due:13.5: Cycling of Matter27) Sketch and label the following biogeochemical cycles:OxygenCarbonNitrogenPhosphorus28) How is the phosphorus cycle distinct from the other cycles?Key Concepts: Below each key concept, write it in your own words29) Matter cycles in and out of an ecosystem.30) Water cycles through the environment.31) Elements essential for life also cycle through ecosystems.Adapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B9Ecology

Name: Class: Date: Due:13.6: Pyramid Models32) The measure of the total dry mass of organisms in a given area is called .33) When a consumer incorporates the biomass of a producer into its own biomass, a large amount of energy islost as and .34) Choose an ecosystem. Research what types of plants and animals live in your chosen ecosystem. Draw anenergy pyramid that might exist within that ecosystem.Key Concepts: Below each key concept, write it in your own words35) Pyramids model the distribution of energy and matter in the ecosystem.36) An energy pyramid shows the distribution of energy among trophic levels.37) Other pyramid models illustrate an ecosystem's biomass and distribution of organisms.Adapted from textbook: Houghton Mifflin Harcourt Publishing CompanyHolt McDougal Biology: Study Guide B10Ecology

13.1: Ecologists Study Relationships 1) Complete the following table with two benefits and a drawback of conducting an experiment in the laboratory compared with conducting an experiment in the field. Exp