In the middle of the fourtheenth century an epidemic known as the black death killed a third of europes population use the production model to explain why wages might have been higehr

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on

what

its a !

i think your answer is c.

i think.

sorry if its wrong!