1. how does fossil evidence indicating that bears survived the last ice age contribute to ideas about human migration in north america?
2. do you think it is possible that if bears could have survived the ice age, humans could too? explain your answer.
3. scientists sometimes need to revise theory in light of new evidence. explain how the discovery of 12,000-year-old tools in south america caused scientists to rethink their explanation of human migration to the americas.

answer; fair labor and standard act;

the answer is "meiosis ii in the mother".

the procedure of meiosis includes two divisions of the hereditary material. the main division is known as the decrease division – or meiosis i – on the grounds that it lessens the quantity of chromosomes from 46 chromosomes or 2n to 23 chromosomes or (n depicts a solitary chromosome set). in people, the decrease division results in two sperm cells each with 23 chromosomes or an egg cell with 23 chromosomes and one disposed of polar body. the second division – or meiosis ii – is called equational division. the two sperm cells split again creating four sperm cells, each with 23 or n chromosomes. in oogenesis, the egg cell and polar body partition to shape the ovum and two extra polar bodies. along these lines, the posterity are guaranteed to get one portion of the chromosomes from the mother and one half from the dad.

answer; you can turn right on a red signal (when posted);