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Biology, 22.12.2019 06:31 daonewest09

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1. fleas, ticks, and tapeworms are common animal parasites, organisms that obtain nutrients by living in or on other organisms and feeding on their tissues. how does the idea of trophic level apply to these animals?

2. which of these processes does not return carbon dioxide to the environment?
a. combustion
b. cellular respiration
c. decomposition
d. transpiration

3. which of the following is not a possible cause of secondary succession?
a. fire
b. flood
c. earthquake
d. change of seasons

4. which of the following is an example of primary succession?
a. lichens growing on rocks after a volcanic eruption
b. grasses growing after a forest fire
c. oak trees replacing pine trees in a forest
d. non-native species introduced into a climax community

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