What is the meaning of the idiom, "don't bite the hand that feeds you"?

Check all of the ways in which a speech can be made suitable for a particular kind of audience (mark all that choose a subject that will interest the audience. use appropriate level of usage. use suitable connotations. always choose your favorite topic. always use formal language.

Read the exercept from robert stawell ball great astronmers, based on the context of the exerpct what does the word protacted most clearly means? a. seeming to be truthful b. weighing an excessive amount c. extending in a specific decision d. continuing for a long time e. being exceptional and talented

Which of these flaws does ulysses reveal while leaving the island after blinding the cyclops? a. a need for comfort b. a need for companionship c. a desire for glory d. a desire for riches