Question 2
Sammi decides to design a model to show how the digestive and circulatory systems interact. She lines a large plastic tube
with a corrugated cardboard tube. Then, she connects smaller plastic tubes to the large plastic tube. These small tubes
connect to a pump. She drills small holes in the large tube so that all of the plastic tubes connect.
She plans to run a green fluid representing food through the cardboard tube.
? Question
Match each part of Sammi's model to the bodily structure it represents. One bodily structure has already been labeled for
you.
capillaries
large
plastic
tube
corrugated
cardboard
tube
-plastic tubing

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.