The main principles of evolution are outline below. Using the principles of evol
ID: 18990 • Letter: T
Question
The main principles of evolution are outline below. Using the principles of evolution as a guide, describe how antibacterial resistance happens OR describe how different skin pigmentation evolved in the human population.I. Variation exists in populations.
II. Some variable traits are inherited or passed along through genetic information.
III. More offspring are born than survive and reproduce.
IV. overtime, advantageous traits become more common in a population and disadvantageous traits less common.
V. Advantageous and disadvantageous traits depend on the environment where an organism lives.
Explanation / Answer
antibiotic resistance I. Variation exists in populations. this happens randomly, and not frequently. however, since bacteria multiply very rapidly it adds up. II. Some variable traits are inherited or passed along through genetic information. most are passed through genetic information. some variations are acquired accidently or through damage that causes mutations, but most genetic information is inherited. III. More offspring are born than survive and reproduce. not all offspring survive. the ones that do survive are better matched to their environment than the ones that don't survive. IV. overtime, advantageous traits become more common in a population and disadvantageous traits less common. since only the survivors get to reproduce their variations become more predominant. V. Advantageous and disadvantageous traits depend on the environment where an organism lives. what is advantageous in one environment will be disadvantageous in another. however, each environment selects for the specimen best suited for survival in that environment. the most important part of this to keep in mind is that individuals don't evolve. populations evolve and it is the environment that selects for the population. as for antibiotic resistance...that means that in a hospital environment we select for the strongest, most resistant bacteria in the world. sad, but true. where our most vulnerable humans are, there too are the toughest bacteria due to our good intentions.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.