How do Hundert’s description of his former students develop a central idea of the text?

Me i’m in need of answerering this

Egbert couldn't wait to see paris! he left the safety of the limb and soared into the blue sky! he had many miles to travel before reaching paris. egbert is a a) bird. b) dog. c) grasshopper. d) squirrel.

Buck did not cry out. he did not check himself, but drove in upon spitz, shoulder to shoulder, so hard that he missed the throat. they rolled over and over in the powdery snow. spitz gained his feet almost as though he had not been overthrown, slashing buck down the shoulder and leaping clear. twice his teeth clipped together, like the steel jaws of a trap, as he backed away for better footing, with lean and lifting lips that writhed and snarled. read this passage. explain what the conflict shows about buck and spitz.