Human cells that are not gametes are called cells.

There are approximately 220 types of somatic cells in the human body. Theoretically, these cells are not germ cells (the source of gametes); they never transmit to their descendants the mutations they have undergone.

Explanation:

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

it cools slower in the earth meaning the crystals have more time to form than lava on the surface