A. virchow hypothesized that cells divide to form new cells. b. hooke gave the name "cells" to the little boxes he saw under magnification. c. the first microscope was invented. d. schleiden concluded that all plants are made up of cells, and schwann concluded that all animals are made of cells.

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.