The number of protons,neutrons,electrons, the way the are classified (earth metal, noble gas,meteoroids) and also the way they react.
OK so when I did this the different ones were cell wall and chloroplast
Using little tweezers you can pull each strand
<span>In order for individuals best suited for growth and reproduction in a particular environment to contribute disproportionately to the next generation natural selection must take place. Natural selection is one of the basic mechanism of evolution. This mechanism leads</span> to adaptations and adaptations contribute to survival and reproduction.
Most scientists don't used the word law because that implies it is infallible but generally scientific laws and theories are used interchangeably so true.
