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
Biology, 21.06.2019 19:40, wweghorst8275
Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation
Answers: 1
Biology, 22.06.2019 02:30, usagimiller
What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.
Answers: 1
Biology, 22.06.2019 11:30, aaron0828
2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.
Answers: 1
DDT was sprayed over an area of land to control a population of insects. It is believed that the pes...
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