What is the best description of the chromosomes by the end of metaphase of mitosis? a- the chromosomes separate at the centromere and begin to move apart b- the chromosomes reach opposite sides of the cell and begin to be incorporated into two new nuclei c- the chromosomes have coiled and become more compact d- the chromosome pairs collect in a line across the middle of the cell(20 )

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.