What criteria must a material meet to be considered a cell?

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart

Brian made this table to organize his notes on changes of state change of state energy change melting gain freezing lose deposition gain condensation lose