DNA replication occurs in the S phase. After that is G2, which is growth and final preparations for division. Chromosomes are checked for errors and repairs are made if needed. Essentially, the cell prepares for division.
I am not completely sure about this one, but I found on the Internet that what is a condition required for the Hardy-Weinberg principle to be in effect is A) random mating occurs.
They need to cope with changing seasons and be able to withstand cold winters and hot summers
