At what phase do the chromosomes line up in the center of the cell?

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

How to convert a density of 0.791g/cm3 to lb/ft3

The minerals found in bones are deposited by living cells called