In 2017, the government spent the least amount of money on which discretionary spending category?

a. department of defense

b. health and human services department

c. social security

d. emergency funding

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

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse

not all were fit for battle and were weak.