If you are writing an Argumentative Essay, a counterclaim is a claim that acknowledges the opponent's claim, and proves your point further.
Answer:
corvid 19 is in fact more dangerous.
The analogy is meant to show parallels between two sets of words. Fertile is to arable as vague is to clouded. If you understand either pair it can be used to decipher the meaning of the other pair you don't know.
