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In the mid-seventeenth century, Dutch scientist Jan Baptista van Helmont struggled to understand where plants get the material that allows them to grow larger. He planted a willow tree of a given weight in a ?xed quantity of soil and then, ?ve years later, weighed both the willow and the soil. He found that the tree had gained 164 pounds during the period but that the soil had lost very little weight. His conclusion was that the willow's weight gain came solely from the water it absorbed through its roots. If you could be transported back to van Helmont's time, what would you tell him about the source of the willow's weight gain? Your response should be at least 200 words in length
Which of the following is true of the evolution of cell membranes? Which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly?
Which of the following is NOT a membrane lipid? wether during mitosis ormeiosis , sister chromatids are held together by proteins referredto as cohesions. Such molecules must have which of the followingproprties:
What is the inbreeding coefficient for the offspring of a) a full sib mating, b) an uncle/niece mating, c)1st cousing mating? Explain why such close inbreeding in a generally outbred population may lead to decreased fitness.
Recognizes true statements of cholesterol and its fluidity. Cholesterol increases membrane fluidity that otherwise contains mainly long chain saturated fatty acids.
Which of the following is a CORRECT statement about the membrane transport of a xenobiotic?
check the attachement you will see the requirment
q1. a 55 year old male was admitted to the hospital with heart failure. he complains of increasing shortness of breath
why does the human body need energy? what forms of energy does the body require?
In Kartagener syndrome , the protein dynein is defective. This defect is due to a mutation in the gene coding for dynein. WHY do the functional consequences of the abnormalities in the dynein structure occur in this case? Please provide a complete..
Create and describe a data set including independent and dependent variables (be creative) and a table of the data. Explain how this would best be graphed to accurately present the results of the research (type of graph, axes, and scale limits - m..
How do you compute the pH of a solution of lysine if the side chain amino group is 3/4 dissociated.
What are two domains that that all eukaryotic transcription factors must have? Describe the function of each of these. What are two other domains that transcription factors can have.
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