example for prokaryote options plants animals birds bacteria
Answers
Answer:
answer is bacteria!!!
key points:
The two prokaryote domains, Bacteria and Archaea, split from each other early in the evolution of life.
Bacteria are very diverse, ranging from disease-causing pathogens to beneficial photosynthesizers and symbionts.
Archaea are also diverse, but none are pathogenic and many live in extreme environments.
A DNA sequencing approach called metagenomics lets scientists identify new species of bacteria and archaea, including ones that can't be cultured.
Introduction
Prokaryotes, which include both bacteria and archaea, are found almost everywhere – in every ecosystem, on every surface of our homes, and inside of our bodies! Some live in environments too extreme for other organisms, such as hot vents on the ocean floor.
Image credit: "Black smoker in Atlantic ocean," by P. Rona (public domain).
Although they are found all around us, prokaryotes can be hard to detect, count, and classify. The prokaryotic species we know of today are a tiny fraction of all prokaryotic species thought to exist.^1
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start superscript, 1, end superscript In fact, the very idea of a “species” becomes complicated in the world of prokaryotes!
In this article, we'll first look at major groups of prokaryotes. Then, we'll explore why it’s often tricky to identify and classify them. Finally, we'll see how DNA sequencing methods are helping us get a better picture of the prokaryotes around us.