1.5 Billion years ago
endosymbiosis.
The first pteridophytes appeared around 400 million years ago during the Silurian period.
Archaebacteria arose first, followed by protists, then animals, fungi, and plants. This evolutionary sequence is generally accepted by scientists based on evidence from the fossil record and molecular studies.
Hard to tell - probably about 40,000 to 60,000 years ago based on how they interacted with their enviornment. But a people who looked just like us was around about 200,000 years ago.
Protists are useful in the ecosystem. They are used in some high blood pressure medicines. They are also used by fish breeders to feed small fry for their first few days of life.
Protists were first found in the fossil record around 2.1 billion years ago.
The very first protists are believed to have been simple unicellular organisms known as "protozoa." These early protists likely evolved around 1.5 billion years ago and played a crucial role in the early diversification of life on Earth.
cheese
Eukaryotic. This means that it has advanced cell structure, including a nucleus. Protists were the first Eukaryotes.
The first eukaryotic organisms on earth were likely single-celled organisms such as protists, which are a diverse group of organisms that have a nucleus and other membrane-bound organelles. These organisms are thought to have evolved around 1.6-2.1 billion years ago.
Eukaryotic. This means that it has advanced cell structure, including a nucleus. Protists were the first Eukaryotes.
endosymbiosis.
Dinoflagellates are unicellular protists which exhibit a great diversity of form. Protists refer to the very first organisms on the Earth.
protist,plant,animakia,fungi
Dinosaurs appeared, probably with Eosaurus, in the mid Triassic period
The first pteridophytes appeared around 400 million years ago during the Silurian period.
Probably around 1992.