Biology, 04.07.2019 03:30 nwalker916
How is human activity related to carbon dioxide concentrations in the atmosphere? a) burning fossil fuels decreases the concentration of carbon dioxide in the atmosphere. b) burning fossil fuels increases the concentration of carbon dioxide in the atmosphere. c) cutting down forests increases the concentration of carbon dioxide in the atmosphere. d) cutting down forests decreases the concentration of carbon dioxide in the atmosphere.
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Biology, 21.06.2019 21:00
What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?
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Biology, 22.06.2019 03:00
In 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? in 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? staphylococcus aureus bacteria that were able to synthesize cell walls using a protein that was not affected by methicillin survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, some bacteria began to synthesize cell walls using a protein that was not affected by methicillin. these bacteria survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, bacterial populations gradually began to synthesize cell walls using a protein that was not affected by methicillin.
Answers: 3
Biology, 22.06.2019 10:00
Number and variety of living organism; includes genetic, species, and ecological types
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Biology, 22.06.2019 10:30
Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?
Answers: 3
How is human activity related to carbon dioxide concentrations in the atmosphere? a) burning fossi...
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