Microscope changed the course of scientific research by enabling scientist to see things and organism that can not be seen by our bare eyes
Answer:
probably B. a religious counselor or leader
Probably spreading depends on the context you probably should add
Because spontaneous bleeding is associated with ginkgo biloba, it is not recommending combining with aspirin as it is a blood thinner.
Answer had to be more than 20 characters long so I just wrote this, but 1. b 2. D