8L3 Ecology
Quiz by Beth Hall
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12 questions
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- Q1What is the original source of energy in a food web?decomposersunconsumerproducer30s
- Q2Which of the following describe a population?a squirrel eating acornsall of the mice living in a barna log providing shelter for beetles, spiders, and snakesall of the sunfish, bass, and catfish living in a lake30s
- Q3How would you locate the tertiary consumer in a food chain?count the producer until you reach the tertiary consumerstart with the decompsersfollow the arrowsstart with the producer and count up from there30s
- Q4What would be considered a biotic factor for a frog's habitat?the algae where the frog lays its eggsthe rocks on which the frog suns itselfthe water in which the frog livesthe air the frog breathes30s
- Q5What characteristic distinguished a population from higher levels of organization?the organisms can breed with each otherthe organisms live in different areasthe organisms compete with each other for foodthe organisms depend on each other for survival30s
- Q6Which of the following would help decrease the amount of carbon in the atmosphere?the burning of coal and oilphotosynthesis performed by plants and treeshuman respirationevaporation from lakes and rivers30s
- Q7When honeybees land on dandelion flowers to drink nectar, pollen sticks to their bodies. The pollen is transferred when the honeybees visit another dandelion flower. What type of ecological relationship is this?competitionmutualismcommensalismparasitism30s
- Q8What species can convert nitrogen in the air into a form that plants can use?virusbacteriadecomposersfungus30s
- Q9How does the nitrogen cycle differ from the carbon and oxygen cycles?most organisms cannot use nitrogen directly from the atmosphere, so it must combine with other elements to form usable nitrogen compoundsnitrogen never becomes incorporated into living things unlike carbon and oxygen, which are required for the formation of sugarorganisms use nitrogen to build proteins and other complex molecules unlike carbon and oxygen which are never incorporated into living thingsanimals breathe nitrogen directly from the air, so they are not dependent on plants releasing it as a byproduct of photosynthesis30s
- Q10How are the carbon and oxygen cycles interconnected?the carbon dioxide produced during photosynthesis is used during respiration to produce oxygenthe oxygen produced during photosynthesis becomes a component of water in the atmospherethe carbon the the surface of the Earth combines with oxygen in the air to form the water in the oceanthe oxygen produced during photosynthesis is used during respiration to produce carbon dioxide30s
- Q11What organism should be added to a food chain if a student is asked to give an example of a mutualistic relationship with plantsrats, they feed on plants' flowers and decrease the populations of plantsbirds, they feed on the seeds of plantsbees, they feed on flowers' nectar and in turn pollinate themrabbits, they feed exclusively on plants30s
- Q12Which of the following symbols best represents the relationship between two communalistic organisms?+/O+/-?/?+/+30s