original_query: How does the current Patent Act treat inventions in the domain of agriculture compared to inventions in the domain of mechanical science?
  What is the most relevant chunk to answer the query?
query: How does the current Canadian Patent Act treat inventions in the domain of agriculture compared to inventions in the domain of mechanical science?
answer: According to the Supreme Court's ruling in Monsanto Canada Inc v Schmeiser, the current Canadian Patent Act treats inventions in agriculture the same as inventions in mechanical science;  it does not distinguish between them.