Since models are simpler than real objects or systems, they have limitations. a model deals with only a portion of a system. the carbon cycle model seen here has limitations and does nor include all pertinent aspects of carbon cycling. what is absent from this model of the carbon cycle? a) it does not show the critical role the oceans play in the storage of carbon. b) it does not show the movement of carbon from one sphere to another in the earth system. c) it does not show the increasing human population and their activities have a tremendous impact on the carbon cycle. d) it does not show the movement of carbon from one storage reservoir to another. one example is the movement of carbon through producers and consumers.

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.

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?