Question

Scenarios ab Trantermakinr of Enorey l Matber SCENARIO #3: The Willow Tree The following is an excerpt from a laboratory notebook from the 1600's... "1 took an earthen pot and in it placed 200 pounds of earth which had been dried out in an oven. This I moistened with rainwater, and in it planted a shoot of willow, which weighed five pounds. When five years had passed the tree, which grew from it weighed 169 pounds and about three ounces. The earthen pot was wetted whenever it was necessary with rain or distilled water only. It was very large, and was sunk in the ground, and had a tin-plated iron lid with many holes punched in it, which covered the edge of the pot to keep air-borne dust from mixing with the earth. I did not keep track of the weight of the leaves, which fell in each ofthe four autumns. Finally, I dried out the earth in the pot once more, and found the same 200 pounds, less about 2 ounces. Thus, 164 pounds of wood, bark, and roots had arisen from water alone." Using what you know about biology, what do you think this scientist is trying to figure out? Do you AGREE or DISAGREE with the concluding sentence? Why? What is your reasoning? SCENARIO #4: Grandma Nguyen and the Coyote Grandma Nguyen has sentimental feelings towards a canyon where she and her late husband honeymooned and hiked long ago. Her feelings towards this spot were such that upon her death she requested to be buried under a tree overlooking the canyon. Using what you know about biology, make a concept map to show how a CARBON ATOM from Grandma Nguyen's body could become part of the coyote's body Include NAMES of MOLECULES that a CARBON ATOM might be in, as well as the NAMES of the BIOLOGICAL PROCESSES that cause it to move from Grandma to the coyote! e coyote will not dig up Grandma Nguyen and consume/eat any ofher remains.

Answer 1

Scenario 3 it is the famous willow tree experiment conducted by the scientist John Baptist van helmont in 1648 with the scientific approach he wanted to set theory with the above experiment that plants grow only with water as it is said in experiment that after five years when he emptied pot removing soil from trees roots and weighed the soil and the tree then he observed that tree has gained weight but soil lost little weight So he concluded that tree had grown from water and not from the soil but of course Halmont conclusion is wrong because although water is important for plants but there are other chemicals also, mostly gases available from environment and small quantity of nutrients are available only through soil for plant to grow.

Scenario 4 .as soon as grandmas body enters inside the soil ,the decomposers start their actions on it hence the dead matter is converted into their source food .as long as there is Oxygen inside the soil, the carbon atoms in grandmas body are converted into carbon dioxide through those decomposers via cellular respiration now this carbon dioxide produced will be taken by plants then carbon is taken to the stomata of leaves of plant and by the Calvin cycle hydrogen and oxygen atoms produced are added to create glucose and fructose which in turn is used to make tree cellulose a form of carbon. now when the leaves of this tree are eaten by deer are rabbits then quotes by feeding upon them will eventually acquire that digested carbon from the body.