(18pts)
penicillin is a drug that kills bacteria today many bacteria are resistant to disease how does natural selection best explain this observation?

a) penicillin causes some bacteria to mutate
b) some bacteria survive penicillin and reproduce.
c)resistant bacteria cannot be attacked by penicillin
d) resistant bacteria mutate more quickly than normal bacteria
explain your answer, !

Name the two stages involved in protein synthesis and explain what occurs in each of the two stages. be sure to also indicate where each process takes place. plz don't give one sentence answers : d

Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research.b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research.c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data.d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?