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- 1. Multiple ChoiceWhich is an example of parasitism?Cat and mouseTadpole and froghuman and tapewormcaterpillar and butterfly
- 2. Multiple ChoiceTwo populations of reef fish live in biological coexistence with each other. Which sentence best describes their relationship?The species compete with each otherOne species preys on the otherThe species ignore each otherOne species benefits from the other
- 3. Multiple ChoiceThe white tailed deer found in North Carolina are herbivores. What will MOST LIKELY happen to the deer if there is a drought and most of the plant life dies?Deer population will not changeDeer population will increase due to a lack of food.Deer population with decrease due to a lack of food.
- 4. Multiple ChoiceWhich would most likely be the top predator in a food web?seagullseaweedcrab
- 5. Multiple ChoiceWhen animals break down glucose to create energy, they release water and carbon dioxide (CO2). How can carbon dioxide (CO2) be reused within the food web?It can be used by animals as a source of oxygenIt can be used by both plants and animals to produce energyIt can be used by plants during photosynthesis to create glucose.
- 6. Multiple ChoiceWhich term best describes two predators living in the same habitat who feed on the same prey?coexistencecompetitionmutualism
- 7. Multiple ChoiceDead matter and waste would pile up without which type of organism?decomposerconsumerproducer
- 8. Multiple ChoiceA wolf and a rabbit are an example of which ecological relationship?predator/preycooperationmutualismproducer/consumer
- 9. Multiple Choice"Lions are predators to antelopes in may African ecosystems." Which is BEST being described?a population shiftan abiotic factora biotic factorthe lion's niche
- 10. Multiple ChoiceWhich description relates to an abiotic ecosystem factor?Plants growing in the environment provide a source of shelter for other organismsNew organisms in the environment rely on favorable weather conditions for survivalAnimals in the environment feed on algae and rich organic material found in the water bed.
- 11. Multiple ChoiceWhich shows the correct flow of energy through this simple food chain?fox to grass to rabbitgrass to fox to rabbitgrass to rabbit to foxrabbit to grass to fox
- 12. Multiple ChoiceWhich is needed by all organisms to survive?wateroxygensunlightcarbon dioxide
- 13. Multiple ChoiceWhat is the energy source for all cycles?plantsthe Sunrespirationphotosynthesis
- 14. Multiple ChoiceWhich is the place where a member of a population lives and finds food?spacehabitatshelterpopulation
- 15. Multiple ChoiceWhich level of a food chain has the MOST energy?decomposersscavengersconsumersproducers
- 16. Multiple ChoiceWhich BEST describes an abiotic limiting factor in a population?animalsplantswaterfood
- 17. Multiple ChoiceSome organisms obtain their food from a host organism. Which is the BEST example of this relationship?a bat pollinating a saguaro cactusa bird building a nest on a tree branchA flea getting nourishment from a cat's bloodants protecting a tree that produces their food.
- 18. Multiple ChoiceWhat accounts for the large difference in plant growth in a tropical rain-forest as opposed to a desert?windnitrogenelevationprecipitation
- 19. Multiple Choice
The diagram of a forest food web. Which organism releases oxygen as a product of photosynthesis?aphiddeergrasshuman - 20. Multiple ChoiceWhen would water be a limiting factor in an ecosystem?when a population is smallwhen a population is decreasingwhen a population contains many predatorswhen a population is approaching the carrying capacity.
- 21. Multiple ChoiceWhich represents a positive consequence of competition within an ecosystem?decreased rate of reproductionelimination of inferior organismsincreased need for natural resourceselimination of entire species of organisms.
- 22. Multiple ChoiceWhich best describes how energy from the sun relates to the energy a cow gets from eating grass in a field?The cow absorbs energy from the sun, and stores the energy in its bodyThe cow absorbs energy from the sun, and uses this energy to break down the grass it eats.The grass absorbs energy from the sun; the cow eats the grass and releases additoinal energy to the grassThe grass uses energy from the sun to make food; the cow eats the grass and breaks it down to release energy for the cow to use.
- 23. Multiple ChoiceFrom what source does most of the energy in an ecosystem come?oilwindwatersunlight
- 24. Multiple ChoiceIn the Arctic, polar bears hunt seals as a source of food. Which BEST describes the relationship between polar bears and seals?The polar bears are consumers; the seals are producersThe polar bears are producers; the seals are consumersThe polar bears are predators; the seals are preyThe polar bears are prey; the seals are predators.
- 25. Multiple ChoiceWoodland ecosystem. Which is a predator in this woodland ecosystem?fishgrasshawkmouse
- 26. Multiple ChoiceIn a marine ecosystem, sea anemones often attach themselves to the shells of hermit crabs, demonstrating mutalism. The stinging tendrils of the sea anemone protect the hermit crab from predators. Which is most likely benefit to the anemone?The anemone foods directly on the crab's shellThe crab protects the anemone from wave and current action.The anemone travels with the crab and has access to more resources.The crab provides the anemone with immunity to diseases and parasites
- 27. Multiple ChoiceWhich provides MOST of the carbon dioxide that algae need to make food?fungiplantsanimalsbacteria
- 28. Multiple ChoiceEnergy decreases as it is lost as heat to the environmentEnergy increases as it is gained from the environmentEnergy is unavalilable because it is used up by the organisms at Level 1Energy is transferred as it is produced by organisms in the next level.
- 29. Multiple ChoiceWhich of these is an abiotic element of a desert ecosystem?sandcactuslizardscorpion
- 30. Multiple ChoiceIn an energy pyramid, the total energy available for consumption from one trophic level to the next one above it is.reducedconservedmultipliedevenly distributed
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