1) What is the trophic level for organisms that make their own "food"? a) Primary Consumers b) Producers c) Secondary Consumers d) Tertiary Consumers 2) What is the trophic level for organisms that consumes producers? a) Secondary Consumers b) Tertiary Consumers c) Primary Consumers d) Producers 3) What do you call organisms that are self-feeders a) Heterotrophs b) Decomposers c) Predators d) Autotrophs 4) This organism primarily gets its energy from already dead organisms. What trophic level is it part of? a) Decomposers b) Producers c) Secondary Consumers d) Detritivores 5) How much energy is transferred between trophic levels in an energy pyramid? a) 5% b) 10% c) 15% d) 20% 6) How is energy lost between levels of a food pyramid? a) As heat b) As cold c) Through handling d) None of these 7) Barn owls feed on mice, what trophic level do they belong to? a) Primary Consumer b) Tertiary Consumer c) Secondary Consumer d) Producer 8) What are enzymes? a) Proteins that slow down chemical reactions b) Proteins used in long term energy storage c) Proteins used in short term energy storage d) Proteins that speed up chemical reactions 9) What makes an acid? a) A solution with an abundance of hydrogen ions (H+) b) A solution with an abundance of hydrogen ions (H-) c) A solution with an abundance of hydroxide ions (OH-) d) A solution with an abundance of hydroxide ions (OH+) 10) What makes a base? a) A solution with an abundance of hydroxide ions (OH+) b) A solution with an abundance of hydroxide ions (OH-) c) A solution with an abundance of hydrogen ions (H+) d) A solution with an abundance of hydrogen ions (H-) 11) Which is a type of compound? a) Ionic b) Covalent c) Both Ionic and Covalent d) Neither Ionic nor Covalent 12) Are viruses alive? a) Yes, by current definition. But some argue the definition should change. b) No, by current definition. But some argue the definition should change. c) No, by current definition. This is universally agreed upon. d) Yes, by current definition. This is universally agreed upon. 13) Which of these is a requirement for life a) Have cells b) Reproduces c) Evolves d) Has heredity e) a and d only f) All of the above 14) Models do what? a) They fully accurately describe a phenomena b) They primarily are useful as teaching tools c) They help an ecologist understand phenomena (via simulations, statistics, math, etc) d) None of these 15) Abiotic factors are? a) Living parts of the ecosystem b) Both living and nonliving parts of the ecosystem c) Neither living nor nonliving parts of the ecosystem d) Nonliving parts of the ecosystem 16) Biotic factors are? a) Living parts of the ecosystem b) Nonliving parts of the ecosystem c) Both living and nonliving parts of the ecosystem d) Neither living nor nonliving parts of the ecosystem 17) What do forward-facing eyes on top of the head reveal about Elmo's ecological niche? a) A need for binocular vision to ambush prey b) A need for binocular vision, but the reasons may vary c) That Elmo descended from an aquatic predator d) A need for binocular vision to search for predators e) That Elmo descended from an aquatic prey animal 18) What is commensalism? a) A relationship between two species that is beneficial to both b) A relationship between two species in which one benefits and the other one is hurt c) A relationship between two species in which one benefits and the other neither benefits or is hurt d) Any relationship in which two species live closely together 19) What is mutualism a) A relationship between two species in which one benefits and the other neither benefits or is hurt b) A relationship between two species in which one benefits and the other one is hurt c) Any relationship in which two species live closely together d) A relationship between two species that is beneficial to both 20) What is parasitism a) A relationship between two species in which one benefits and the other one is hurt b) A relationship between two species that is beneficial to both c) A relationship between two species in which one benefits and the other neither benefits or is hurt d) Any relationship in which two species live closely together 21) What is symbiosis? a) A relationship between two species in which one benefits and the other one is hurt b) Any relationship in which two species live closely together c) A relationship between two species in which one benefits and the other neither benefits or is hurt d) A relationship between two species that is beneficial to both 22) What do you call a species that causes dramatic change and increases biodiversity a) An invasive species b) An exotic species c) A keystone species d) None of the above 23) What is a niche? a) A general place where an organism lives b) A group of individuals of the same species c) A group of species d) Where an organism lives and how it interacts with it's environment 24) What is population density? a) The number of individuals per unit area b) The total number of individuals c) It refers to how a population grows d) It refers to the geographic range 25) What is this growth curve a) Logistic Growth b) Exponential Growth c) Linear Growth d) Logarithmic Growth 26) What is this growth curve? a) Linear Growth b) Exponential Growth c) Logistic Growth d) Logarithmic Growth 27) Density dependent factors include a) Competition b) Predation c) Storms d) Wildfires e) Competition and Predation f) All of these 28) Density independent factors include a) Competition b) Predation c) Storms d) Wildfires e) Storms and Wildfires f) None of these 29) What is an ion? a) An atom or compound that has gained or lost an electron b) An atom or compound that has gained electron only c) An atom or compound that has lost an electron only d) An atom, not a compound, that has gained or lost an electron e) A compound, not an atom, that has gained or lost an electron 30) In the deep ocean, where there is no sunlight, how to organisms get energy? a) From dead organisms at the surface that sink to the bottom b) Through photosynthesizers near hydrothermal vents c) Through chemosynthesizers near hydrothermal vents d) From sinking organisms and chemosynthesizers e) From sinking organisms and photosynthesizers f) All of the above

Ecology

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