A. What antibiotic should they have used to initially treat Addie’s MRSA, and why? B. Using your knowledge of antibiotics and natural selection (variation and adaptation), how MRSA is resistant to certain antibiotics, but not others.

C. Hospitals need to make health decisions regarding patient outcomes (effectiveness) and cost. If the antibiotic you chose for #1 becomes commonly used in hospitals, how could this contribute/lead to antibiotic resistance and overall cost of treatment?

Describe the iron sulfide hypothesis and the lipid membrane hypothesis.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

1) strawberry plants typically reproduce by making runners, which are miniature versions of themselves, that grow off of the roots and stems of the parent. this type of vegetative reproduction is known as a) pollination. b) fragmentation. c) binary fission. d) vegetative propogation.