Why does the student talk to his adviser?

Questions 1 through 3. Listen to a conversation between a student and his adviser.
M: Could I talk to you about registration?
W: Sure. What can I do for you?
M: I’m, um, I’d like to take oceanography, but I don’t have the prerequisite that’s listed in the catalog, you know, Math 150.
W: Oh, I see. Well, if you took oceanography, you’d need that mathematics course first. There would be some physics and chemistry, so you’d need a solid grasp of numerical data.
M: That’s what I wanted to talk to you about. I thought, if I took the math course at the same time as oceanography, then I could graduate at the end of the year.
W: Sorry, but you need to have the math course first. Unless you have a good foundation in math, you’ll find oceanography very difficult.
M: I’ve taken three math classes already. Isn’t that enough?
W: I’m afraid not. The Oceanography Department specifically requires Math 150.
M: I wish I could convince someone! I know I could do both courses! Would it help if I talked to the professor?
W: You could try, but I wouldn’t get my hopes up if I were you.
M: Oh, well, in that case, I’d better just take the math course and get it over with.
W: Good idea.
M: But as long as I’m here, can you tell me if oceanography is being taught in the summer?
1. Why does the student talk to his adviser?
2. What does the adviser mean when she says this: "Unless you have a good foundation in math, you’ll find oceanography very difficult."
3. Listen again to part of the conversation. Then answer the question.
"I wish I could convince someone! I know I could do both courses! Would it help if I talked to the professor?"
"You could try, but I wouldn’t get my hopes up if I were you."
What does the adviser imply?