Biology, 20.10.2020 20:01 heavyhearttim
There are many factors that affect plant growth, including the salts and minerals in their water supply. A farmer wants to find the right concentration of mineral solution to use with his sunflower crop. He places five sunflowers in a beaker of 1 M mineral solution, five sunflowers in a beaker of 0.5 M mineral solution, and five sunflowers in a beaker of 0.2 M mineral solution.
a) Calculate the solute potential of a 0.5 M mineral solution at room temperature (25⁰C). A sample sunflower has a solute potential of -28 bars within its cells. (Note: i =ionization constant = 1.0) Determine the direction water will flow between the sunflower and its environment.
b) Once equilibrium is reached between sunflower and the environment, calculate the turgor pressure inside the plant cell.
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One gene can influence trait(s). one trait can be determined by gene(s).
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Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass
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Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.
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Biology, 22.06.2019 10:30
Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection
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There are many factors that affect plant growth, including the salts and minerals in their water sup...
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