Marsupials began to migrate to Australia and New Zealand from North America in the late Cretaceous or early Tertiary period. The route of migration crossed Antarctica and into Australia.
Explanation:
it is comprised of hormones that regulate physiological function
Answer:
2. lluvia, sequía, derretimiento de glaciares, aumento de la temporada etc
Digestion begins in the mouth. Saliva contains enzymes which begin to break down food. The mouth also uses the teeth and jaw to mechanically break down food.