The given case describes the situation of emotional arousal.
The emotional arousal is the state, in which the alertness of the body increases due to the increase in the emotions.
In this case, the death of the woman's aunt, leaves a emotional remark to her. As she knows that smoking causes lung cancer, she feels very emotional and quits smoking.
Obligate anaerobe. <span>Obligate anaerobes metabolise energy by </span>anaerobic respiration<span> or </span>fermentation <span>and </span>obligate anaerobes<span> die in the presence of oxygen.</span>
No, it the ratio does not prove that the shiny wing is dominant. The ratio only says that shiny wing is more common than the dull wings.
To know which allele is dominant, you need to do an experiment by crossing various beetle and observe the ratio of the offspring phenotype.
