alkueliöihin

Could you clarify the topic of "alkueliöihin"? The term as written isn’t a standard Finnish scientific term, so I want to make sure I write the right article. Possible interpretations might be:

- If you meant alkuaineisiin (chemical elements), I can write a concise wiki-style overview covering classification, the periodic table, and key properties.

- If you meant something like “alkueliöihin” referring to primitive or early organisms, I can write a brief article about early life forms and related concepts.

Please confirm which topic you intended, or provide the exact subject you want, and I’ll generate a neutral, concise article under 300 words.