Heres some questions about Bio i need help with?

1) Which of the following has alkaloids as its poisons property?
a) water hemlock  b) castor been c)pokeweed  d)senna e) datura

2) Coffeeweed, Wisteria, and Acacia are members of which family
a) pea  b) carrot  c) buttercup  d) tomato   e) health

3) Man's use of Willow and Datura in medicine and related fields most appropriately applies to the concepts of : a) doctrine of signatures  b) inventionists  c) diffusionist d) apomixes  e) osmosis

4) The plant that contains emetine for control ameobic dysentery is:
a) opium poppy b) belladonna c)datura d) ipecac e) chaulmoorga

5) Which (if any) of the following statements are false regarding alkaloids?
a) they occur most frequently in seed plants
b) many are used in medicines
c) They occur in drinks like coffee and tea
d) Many of them are poisonous
e) all of the above are true