True or False? a human has 23 chromosomes

False

Explanation:

A cell normally contains 23 pairs of chromosomes.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

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