Earthquake sometimes occur when blank (a. a volcanic island moves away from a hotspot and it goes extinct, b. the solid rock layer in the lithosphere is no longer influenced by the more fluid asthenosphere, c. a transform boundary causes excessive amounts of friction between two tectonic plates, d. a divergent boundary abruptly reserves rolls to become a convergent boundary) some underwater earthquake shake the ocean floor in cause large sea waves that destroy property and threaten lives such as a sea wave is called blank (a. an avalanche, b. a tsunami, c. a tidal wave, d. a landslide)

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.