1. How does the evolution of a bacieria! population after exposure to antibacter
ID: 209499 • Letter: 1
Question
1. How does the evolution of a bacieria! population after exposure to antibacterial substances demonstrate natural selection? Why do vestigial structures persist if they no longer have a purpose? Do we have any vestigial DNA? if so, where did it come from, what did it do, what does it do now, and why haven't we lost it? 2. 3. 2 4. Could we ever clone the "perfect" human being? Why or why not. 5. Describe how two unrelated flowers could evolve to have a similar appearance. 6. Are similarities between sharks and dolphins homologous or analogous? 7. What types of information are used to determine how species are related to one another by descent from shared ancestors? Give an example of how multiple types of evidence can support one another. 8. Why is the fossil record useful, even if it doesn't represent every type of organism that ever lived? Could the recent development of antibiotic-resistant bacteria be a result of natural selection, artificial selection, or both? Justify your answer. 9.Explanation / Answer
1. When expauser of antibacterial substances is given to the bacteria then some of them undergo to death and then few of them just developed a kind of tolerance. These few bacterial strains starts developing few kind of resistance mechanism. These resistance mechanism are developed by change in molecular level. Due to this change we can give the labeling that this is the process of natural selection.
Natural selection is the phenomena of selecting individuals by nature. But nature selects only those individuals which are able to change their genotypic conditions with demands of surrounding conditions. Nature allows the growth and survival of individuals which changed their geneotypic conditions according to the demand.
For example: when a antimicrobial agent is applied to the particular spot then some of the bacteria is able to protect themselves by destroying from that agent. These organism able to protect themself and then slightly starts to develop a kind of mechanism which provides them resistance.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.