Which of the following work by robert hooke most likely impacted later scientists who developed the theory that all organisms are made of cells?
a. hooke’s conclusion that the distance that a spring stretches is proportional to the force that is pulling it apart
b. hooke’s invention of a mechanical, portable watch to tell time
c. hooke’s use of the telescope to discover that stars are attracted more to one another when they are closer together
d. hooke’s use of the microscope to observe and compare dead wood to living wood