Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Transcribed Image Text:Can you determine phosphorus content in the soil via CEC measurement?
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- It is June in Fresno and the officials at the water district have just reduced your irrigation ration by 26%. In the field, you determine that the water potential in your soil is -1.68 MPa while the water potential of your crop is -1.62 MPa. Question A. Is your crop able to take up water from the soil? Explain. Question B. It is now late August and your soil water potential is -2.10 MPa, fortunately, you have been granted one magic wish in altering the physiology of your crop to increase its ability to take up water, however, you must choose from one of the options below. Fill in the values denoted by the ? as needed, and select the option that will cause the greatest water uptake by your crop. Option Vs (MPa) Vp (MPa) Vw (MPa) -1.90 0.00 -2.59 +0.13 -2.4 -2.09 -2.05 -2.28 +0.17 4.arrow_forwardWould 1 change of xylene for 20 minutes be superior to 2 changes of xylene for 10 minutes each in terms of dewaxing results? Explainarrow_forwardBesides recrystallization process, give another general idea how to purify your crude product.arrow_forward
- Assuming that layer silicates and humic acid exist independently in the soil, calculate a typical CEC that would be measured for a soil at pH 7 containing: a. 300 g kg' montmorillonite and 30 g kg SOM b. 300 g kg' kaolinite and 30 g kg- SOM. Pick a reasonable value and site your source (text, notes, etc.) c. In a real soil with similar amounts of minerals and SOM, would you expect higher or lower CEC? Why? Please give answer all questionsarrow_forwardClassify each of the following organic nutrients based on the descriptions provided. Answers may be used more than once.arrow_forwardAccording to Atterberg, between the ________________ and ______________ limits, a soil is in a plastic state.arrow_forward
- In words, describe the differences you see for each organism grown at 30 C or 37 C (i.e., amount of growth, color, etc)arrow_forwardA water quality control board reports that water is unsafe for drinking if the proportion of nitrate concentration exceeds 21% ppm. Water specimens are taken from a well. ?o: ??:arrow_forwardThe equation for the decomposition rate of leaves can be written as moekt You start with 100g of palm leaves. Estimate the remaining mass of leaves after 7, 14, and 21 days. Assume the leaf has a decomposition rate of k=0.07. mtarrow_forward
- According to the water potential values shown in the image, which ones are wrong and why? W air (22 °C, 50% HR) -100 MPa Cas V sheet -0.2 MPa W stem -0.01 MPa to -0.1 MPa W soil -1 MPa to -0.51 MPa -4 MPa W root -0.1 MPa toarrow_forwardYou are asked to determine the settleability of biomass in a suspended growth activated sludge sample that was brought to the laboratory. Describe the protocol you follow to achieve the objective. (If you prefer it, you can use your own numerical example to illustrate the process). Use drawings if you like to illustrate your point(s).arrow_forwardWhy Chamomile is used for beautification purposes? Write its specific activity and uses on beautification purposes. please briefly write at your own words.arrow_forward
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