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)
Answer:
Because people did not know that yellow fever was caused by the bite of an infected mosquito, they assumed incorrectly that people could catch the disease through touch. To help control the disease, letters were cleaned with vinegar before being sent. This did not work, because it was a false cause-and-effect relationship.
Answer:
The workers followed in succession to the corn field. The would all help with the tillage today.
Explanation:
Succession-a number of people or things sharing a specified characteristic and following one after the other.
Tillage-the preparation of land for growing crops.
Answer:
an,off,in order to,isn't there,yourselves,principal,since,
Play with toys ? watch tv , they cry q lot for attention and suck on so many things