The organisms within an established ecosystem interact and form relationships with each other over time. This interdependence
allows ecosystems to remain relatively stable for hundreds and sometimes thousands of years.
Which of the following would likely increase the population size of an established plant species?
an increase in available nutrients
introduction of a non-native species
0 0 0 0
an extended drought
a sudden change in climate
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Biology, 22.06.2019 01:00
How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain
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Are the earth's ocean floor and continents the same age geologically? why or why not?
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Biology, 22.06.2019 12:00
Which process is represented a.) deletion b.) nondisjunction c.) translocation d.) insertion
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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
The organisms within an established ecosystem interact and form relationships with each other over t...
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