Which three statements are true about the energy flow in an ecosystem? a. the main source of energy for the ecosystem is the sun. b. producers convert radiant energy to chemical energy and provide for the entire ecosystem. c. energy flows from carnivores to herbivores. d. the maximum amount of energy is received at the highest trophic level. e. the maximum amount of biomass is present at the lowest trophic level.
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Biology, 22.06.2019 02:30, ComicSans10
Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?
Answers: 1
Biology, 22.06.2019 05:00, shreyapatel2004
Match each term to its best definition? sedimentary depositional enviornment
Answers: 1
Biology, 22.06.2019 05:30, coolcat3190
How does the nervous system affect the excretory system?
Answers: 1
Which three statements are true about the energy flow in an ecosystem? a. the main source of energ...
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