Cyanobacteria which first appeared on earth over 3 billion years ago are

What does all of the organ system in a human form

What are the possible blood types among the children of parents that are ab and ii? oa) types a and b ob) types a, b, and ab c) types a, b, and o od) types a, b, ab, and o

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime