Due to the moon's location at a certain time of year
Large amplitude.
Hope this helps
Natural Selection a single gene traits can lead to change in allele frequencies and to change in phenotype frequencies.
Answer:
Chronic Condiitons or Cronic diseases
Meiosis continually reshuffles the genes resulting in a great variety of offspring. Without meiosis we would all look exactly alike. Meiosis allows each offspring to be different, and so potentially better, than the parent. If a disease comes along, there is a good chance that some of the population won't get sick or die because everyone's DNA isn't exactly alike.
