One of ways Golding shows conflict between savagery and civilisation is when Jack and some of the other boys are killing the first pig. Jack chants “kill the pig, cut her throat, spill the blood”. This suggests savagery as the boys are being violent and aggressive when killing the pig and they don't care about it.
The correct answer for 1 is that death has taken Juliet as his love and wishes to keep her. The correct answer for 2 is an animal throat or mouth. The correct answer of 3 is one person vs the world