1. Do some research into thornless varieties of plants.
a. What plants are available which do not have thorns?
b. Is thornlessness a mutation?
c. When and where was the possibility of growing thornless varieties of plants discovered?
d. How do these varieties compare with the variety that has thorns?
e. Consult seed catalogs, gardening books, and magazines in the library.
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1. Do some research into thornless varieties of plants.
a. What plants are available which do not h...
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