The seven levels of classification are Kingdom, Phylum, Class, Order, Family, Genus, and Species.
Answer:
It may vary because of the climate of that region or also the physical conditions, also the type of plants found there
One main reason is human influence
Explanation:
Your DNA is comprised of chromosomes which is comprised of genes. Your genes determine which inherited traits you receive from your parents. When you parents "make you" they each donate 16 chromosomes that contain many genes. These chromosomes make up your DNA, which effects your inherited traits such as, eye color, and hair color.
Hope this helps!