Which is and example of cell differentiation

Explanation:

example of cell differentiation is the development of a single-celled zygote into a multicellular embryo that further develops into a more complex multisystem of distinct cell types of a fetus.

zygote

Explanation:

An example of cell differentiation is the development of a single-celled zygote into a multicellular embryo that further develops into a more complex multisystem of distinct cell types of a fetus.

i'd say that the moon rock is about 2.2 billion years old.

i thinking chemical change