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Bacteria that invade a host organism and obtain nutrients from the host's cell are pathegonic bacteria.
Silurian period
A terrestrial organism is an organism that predominantly lives on land. Examples of terrestrial organisms are dogs, cows, wolves and ants.
Sediment covers dead organisms to be fossilized. On land the organism could fall into a lake or swamp, or it can be covered by sand or volcanic ash.
I believe you are asking what the first word of an organism's scientific name is. If that is the case, the first word in an organism's scientific name is the organism's taxonomic genus.
the poo
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)
The first animals to enter land were the invertebrates, followed by some fish which later evolved into amphibians.
Nonvascular plants
Bacteria that invade a host organism and obtain nutrients from the host's cell are pathegonic bacteria.
invade
First were the plants and fungi, then came the arthropods, then finally the vertebrates.
Silurian period
It is Pathogenic
Since we don't actually know which organism appeared first, there's no way of knowing what came second.
Tamerlane invaded India, but he wasn't the first to invade. The first person to invade India was Shun Johan. So Shun Johan was the first to invade India.
the first invaders ever to invade rome was the huns!!