Biology, 26.07.2019 11:30 hannahkelly1629
What evidence exists that suggests modern agriculture is unsustainable? what evidence exists that suggests modern agriculture is unsustainable? fertilizers and pesticides are inexpensive and easy to obtain. fresh water is used for irrigating crops. more food is produced than can be used. large amounts of nonrenewable fossil fuels are required. request answer?
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Biology, 22.06.2019 04:10
How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.
Answers: 1
Biology, 22.06.2019 09:00
How does photosynthesis show the conservation of mass and energy?
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Biology, 22.06.2019 19:00
Penicillin is hydrolyzed and thereby rendered inactive by penicillinase (also known as β-lactamase), an enzyme present in some resistant bacteria. the mass of this enzyme in staphylococcus aureus is 29.6 kd. the amount of penicillin hydrolyzed in 1 minute in a 10-ml solution containing 10-9 g of purified penicillinase was measured as a function of the concentration of penicillin. assume that the concentration of penicillin does not change appreciably during the assay. penicillin(μm) amount hydrolyzed(nmol) 1 0.11 3 0.25 5 0.34 10 0.45 30 0.58 50 0.61 (a) plot v0 versus [s] and 1/v0 versus 1/[s] for these data. does penicillinase appear to obey michaelis-menten kinetics? if so, what is the value of km? (b) what is the value of vmax? (c) what is the turnover number of penicillinase under these experimental conditions? assume one active site per enzyme molecule.
Answers: 2
What evidence exists that suggests modern agriculture is unsustainable? what evidence exists that s...
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