Answer:
long cold winters, with annual temperatures mostly below freezing.
Sexual, asexual hope this is what u are looking for
They stay in deeper warmer water and move allot and eat a lot of bait food
<span>Genetic variation can be caused by mutation (which can
create entirely new alleles in a population), random mating, random
fertilization, and recombination between homologous chromosomes during
meiosis (which reshuffles alleles within an organism's offspring)</span>
