Slow cooling of hot magma leads to the formation of what crystals

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

This is a type pf behavior that animals are born with and them to survive

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give