·       Offspring are similar to but not exactly like their parents

·       Offspring have to grow up (or change) before reproducing themselves

·       There are several levels of adjustment between individuals, or species, and their environment (in some cases there seems to be a fit, but not in others)

·       The Earth is more than four billion years old, allowing large amounts of time for biological as well as geological evolution.” (Tidon) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000100021

·       Food chains follow this order: plant -> prey  -> predator

·       A herbivore eats only plants

·       A carnivore eats only meat

·      An omnivore eats both plants and meat