Answer:
1.
an exchange of diverging or opposite views, typically a heated or angry one.
2.
a reason or set of reasons given with the aim of persuading others that an action or idea is right or wrong.
Answer:
secondary; basic
Explanation:
Secondary literature refers to a form of literature that is created by analyzing , Evaluating, and Analyzing the literature work that created by other people. (In the example above, the article is analyzing/evaluating the work of other scientist named Tiktaalik roseae)
The research itself is considered as a Basic research because it is aimed to provide more knowledge that help us improve our understanding of a certain phenomena (Rosae's areticle help us understanding the link between fish and terrestrial tetrapods)
C wolves are wild I belive plz tell me if I'm right