Do someone know the answer if so plz tell me

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

The identities of substances are the same before and after which type of change

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule