The answer is exemplar model of organizing concepts. It is because the exemplar model was able to make Juan and Sergei correct because this model enables their examples to be appropriate or compatible to the questions being asked. It is a way of saying that the examples that they have been given is the a good example to the question that has been asked, making it correct and reliable.
Answer:
Top one is Nucleus
Middle one is DNA
Bottom mRNA
Hope this helps!
surface evaporation will occur
where water is converted into gaseous state
when it reaches 100 c the it will boil and faster evaporation occurs