Why does a cell need to replicate its DNA equally

The use of logic making empirical observations and performing dissections were all part of the scientific studies by

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.

This rapid change in species that rarely leaves behind fossil evidence is referred to as