I need help to answers my questions

I have assignmet that i need someone to help me please, i need to answers 3 questions for my cultural anthorpology class and i need to use my own article to answers all 3 questions please  i don’t want to use any plargiarism please . please read my own article that i post it for  you, the article name is “Abelam Giant Yams And Cycles of Sex , Warfare, and RItual” 

Here is the 3 Quetions:

1)what does scaglion mean by the enthnographic present?

2)Does this concept( ethnographic present allwo for studying culture change? Explain your Answers.

3)Explain the ritual of “blowing on the Yams”