In his planet military court, where he is being tried for abandonment of his post on Earth, ET (The extra terrestrial) testified that he left Earth because all earthlings panicked when they saw a visual warning message, sent to Earth with a frequency of 8.74x10^12 Hz. Was ET being truthful?

What must happen before a body cell can begin mitotic cell division

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury