the size of the negative charge of an electron us exactly the same as the size of the positive charge of a proton. what is the overall charge of the helium atom ​

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Mitosis is a type of cell division that produces cells that are identical to the parent cell. meiosis is a different type of cell division that produces cells that carry have a genetic material of the parent cell. based on the information provided how do the purpose of mitosis and meiosis differ

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?