Answer:
The researcher's claim is in the same way of the observation made because from it it is inferred that in a population of bacteria with genetic variation, in which some of them have plasmids and others do not, the population survives because those bacteria with plasmids are resistant to antibiotics, if for example there were only bacteria without plasmids all bacteria would die when using antibiotics so this is an example that genetic diversity is an evolutionary advantage
There are many answers to your question but one way is the evaporation cycle.
We need the context of the work of you want us to answer
The common passageway shared by the respiratory and digestive system is the pharynx
It is sensors :) i hope this helped you :)