life first appeared on land in the crozoan era about 2.5 million years ago
the paleozoic era
The 6th day. Read Genesis 1:24-31 for more information.
No. Earth itself is "only" about 4.6 billion years old. The first life may have emerged about 4 billion years ago.
stratum spinosum
Most evolutionary biologists theorize that the first living organisms were single-celled prokariotes similar to currently existing bacteria. The distinction between proto-biotic and true life is a difficult one, so while there were self-replicating amino acid chains, the first life would have been a distinct cell that divided in an aqueous (watery) environment. (see related link on abiogenesis)
Dinosaurs
Promised Land
When the blossoms first appear
4 million BC
the paleozoic era
Both. The generally accepted idea is that life first evolved in the sea. Insects, fish with bony fins and rudimentary lungs (adapted air bladders) and plants eventually left the water to colonize land. Life in both realms continued to adapt to their evironments over millions of years to produce the life that we see today.
a bug
in the beginning when God created it
Pre-Cambrian. It's when bacteria first came about.
Pre-Cambrian. It's when bacteria first came about.
No. Land reptiles were well estiablished by the time the Triassic period began. They first appeared in the Carboniferous.
Most infants with Canavan disease appear normal for the first month of life