Which of the following is the best statement about natural selection? explain how you got your answer.

a. most populations of organisms evolve to become more and more alike, eventually becoming genetic clones

b. some individuals in a population have a variation that gives them an advantage to survive and reproduce.

c. if a population becomes isolated from others, the possibility for mutations to occur decreases and extinction results.

d. a stable environment and less variations in a population’s gene pool promotes evolution of new species.

What is the name of the two satelites on mars

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.

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions