Nucleosomes allow enormous lengths of DNA to be folded inside the nucleus. Nucleosomes also prevent what from becoming tangled during mitosis? A. nucleus B. chromatin C. centrioles D. ribosomes​

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.