physio EX 9.0 EXERCISE 6 act 4 Help!! please

Muscarine is a poison found in poisonous mushrooms. Muscarine binds to acetylcholine receptors and mimics its action. Which of the following describes the effect of muscarine?
    Like pilocarpine, it decreases the heart rate.
    Like pilocarpine, it increases the heart rate.
    Like atropine, it increases the heart rate.
    Like atropine, it decreases the heart rate.

Beta blockers are used to treat high blood pressure (hypertension). Which receptors do you think are being blocked?
    muscarinic
    alpha-adrenergic
    beta-adrenergic
    nicotinic

With respect to heart rate, which of the following worked in opposition to each other?
    digitalis and pilocarpine
    digitalis and pilocarpine as well as atropine and epinephrine
    atropine and epinephrine
    digitalis and atropine

With respect to heart rate, which of the following had the same effect?
    digitalis and pilocarpine as well as atropine and epinephrine
    atropine and epinephrine
    digitalis and pilocarpine
    digitalis and atropine