During mitosis, chromosomes are moved and separated through the use of spindles composed of _ structures

What did hunter gathers do to alter the environment?

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

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.