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Biology
8th
grade
8.3.3 Carbon Cycle and Ecosystems (Food Chains & Webs)
31 questions
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- 1. Multiple ChoiceWhen humans burn fossil fuels, most of the carbon quickly enters the as carbon dioxide.WaterAtmosphereSunAir
- 2. Multiple ChoiceHow do living organisms return carbon to the atmosphere in the carbon cycle?respiration and photosynthesisdecomposition and respiration
- 3. Multiple ChoiceHow does the carbon in grass become part of a lion?The lion eats the grassCarbon from grass doesn't end up in a lion.The carbon ends up in the lion's food chain.The lion breathes in carbon given out by the plant
- 4. Multiple ChoiceTemperature, light, air, water, and soil are all _____ parts of the environmentalivebioticabioticliving
- 5. Multiple ChoiceA living or once-living organisms in an ecosystem is apopulationbiotic factorabiotic factorcommunity
- 6. Multiple ChoiceA nonliving element in an ecosystem is ananimalabiotic factorbiotic factororganism
- 7. Multiple ChoiceWhat are the biotic factors in this image?sunlight, elephants, and grassessunlight, water, and airelephants, plants, trees
- 8. Multiple ChoiceA system made up of organisms interacting with one anotherbiologyabioticbioticecosystem
- 9. Multiple ChoiceWhat percentage of energy is passed on to each tropic level?10%50%90%100%
- 10. Multiple ChoiceWhat might happen if you remove a primary consumer from the ecosystem?There would be more food for secondary consumers.The number of primary consumers would increase.The number of plants would increase.The number of secondary consumers would increase.
- 11. Multiple ChoiceHow do producers obtain energy?They conduct photosynthesis.They consume plants.They consume primary consumers.They consume secondary consumers.
- 12. Multiple ChoiceA consumer that hunts is called:a producer.an omnivore.a predator.a herbivore.
- 13. Multiple ChoiceWhere do decomposers go in your food chain?at the beginningthey don't belong in a food chainat the endat every level
- 14. Multiple ChoiceWhich represents the largest group in a food web?carnivoresomnivoresherbivoresproducers
- 15. Multiple Choicediagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heatsuccessioncellular respirationenergy pyramidbiochemical cycle
- 16. Multiple ChoiceWhich of the following organisms is a herbivore.butterflysnakefoxladybird
- 17. Multiple ChoiceWhich of the following organisms is a carnivore.greenflytitmousemousebuzzard
- 18. Multiple Choice
Which organism is the top (apex) predator in this food web?
leopard seal
killer whale
elephant seal
crabeater seal
- 19. Multiple Choice
How many predators does the squid have? (hint: how many animals does it point to?)
1
2
3
4
- 20. Multiple ChoiceName the producers in this food web.seagull and fishpenguin and crabphytoplankton and seaweedseaweed and zooplankton
- 21. Multiple ChoiceWhat type of consumer is the impala?herbivoreomnivorecarnivore
- 22. Multiple ChoiceWhich one is NOT an example of a decomposer?mushroomleavesmoldworm
- 23. Multiple ChoiceThe way energy is passed from one organism to anotherfood chainenergyextincthabitat
- 24. Multiple ChoiceExamples of a producerfrogalgaewormmouse
- 25. Multiple ChoiceExample of a decomposerfungusmouseplantsfrogs
- 26. Multiple ChoiceExample of a consumerwormbacteriamushroomhawk
- 27. Multiple ChoiceHumans are considered...consumersdecomposersproducers
- 28. Multiple ChoiceWhat is a producer?an organism that gets energy from eating other organismsan organisms that uses sunlight to make its own foodan organism that gets energy from eating dead organisms, non-living material or wastean organism that uses chemical energy to make its own food
- 29. Multiple ChoiceA connection of food chains with many food energy paths in an ecosystem is a ____________ecosystemfood webenvironmentpopulation
- 30. Multiple ChoiceAn animal that gets energy from eating both plants and animals is aherbivorecarnivoreomnivoreautotroph
- 31. Multiple ChoiceWhere do all life forms get their energy?Earth's CoreWaterPlantsThe Sun
- Answer choicesTagsAnswer choicesTags