tv/ movies: Category: Monty Python: The animal with pointy teeth?

Questions

What's the general name for germ fighting drugs such as penicillin & streptomycin?

What's the largest & most powerful of the American cats?

What's the most effective insulator brick, fibreglass or wood?

What's the offspring of a lioness & a tiger called?

Whats the term for a mass of diffused gas & ice particles in solar orbit?