In an element, do atoms have the same number of protons or a different number of protons?

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

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