Yes the digestie system is red
You could be depressed from a lot of different things, from losing your job to someone passing away
Answer:
during the Cambrian Period of the Paleozoic Era.
Explanation:
The Paleozoic is the earliest era (of three) of the Phanerozoic Eon and is composed of six geologic periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian (in that order from earliest to the latest). Fish first appeared about 530 million years ago during the Cambrian explosion.
Answer:
Mid-Atlantic Ridge
Explanation:
This is because they are deep down, near the earth's crust .
