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- 1. Multiple Choice
Does this food web have arrows pointing the right way?YesNo - 2. Multiple ChoiceWhy is some energy not passed on to the next trophic level?The organisms at each level use about 90% of the available energy to live.The statement is NOT true. All energy IS passed from one trophic level to the next.The organisms at each level use about 10% of the available energy to live.Most energy is absorbed by the soil instead.
- 3. Multiple ChoiceThe arrows in a food web…Point from predator to prey.Show the direction of energy flow in an ecosystemAlways point from smaller to larger organisms.Always point from the larger to smaller organisms.
- 4. Multiple ChoiceWhich of the following best describes the small bird in the food web above?primary and secondary consumersecondary and tertiary consumerprimary consumer onlysecondary consumer only
- 5. Multiple ChoiceWhich of the following would be the most likely effect, if there were a sudden increase in the cricket population?There would be a decrease in the small bird population.There would be a decrease in the grass/flowers population.There would be a decrease in the mice population.There would be an increase in the grass/flowers population.
- 6. Multiple ChoiceWhich organism(s) in the food web above can be described as quaternary consumers?owl, mosquito and mousemouse onlysmall bird and owlowl only
- 7. Multiple ChoiceWhich organism has the most energy and which organism has the least amount of energy? Choose the best answer.mosquito and grassmouse and grassgrass and owlgrass and small bird
- 8. Multiple ChoiceIn the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?80%90%10%20%
- 9. Multiple ChoiceWhat percentage of energy is passed on to each tropic level?10%50%90%100%
- 10. Multiple ChoiceDoes this food web have arrows pointing the right way?yesno
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