Biology, 18.05.2021 21:30 fluffypuppies24
DDT was sprayed over an area of land to control a population of insects. It is believed that the pesticide interfered with birds' ability to metabolize calcium. The
best explanation for how this pesticide came to affect the eggshells of the birds is that:
A. Fish eaten by the birds had been directly sprayed with DDT
B. The birds were sprayed with DDT
C. DDT washed into local bodies of water, was passed through the food chain consisting of plankton, fish and the birds
D. Insects sprayed with DDT infested the birds' nests
Answers: 2
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Biology, 21.06.2019 18:30
Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.
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DDT was sprayed over an area of land to control a population of insects. It is believed that the pes...
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