Explain bacteria, archaea and eukarya...
1. The domains Bacteria and Archaea contain unicellular prokaryotes; organisms in the domain Eukarya are eukaryotes that have a membrane-bound nucleus.
2. The prokaryotes are structurally simple but are metabolically complex.
3. Archaea can live in water devoid of oxygen, and are able to survive harsh environmental conditions (temperatures, salinity, pH).
4. Bacteria are adapted to live almost anywhere (water, soil, atmosphere, in/on the human body, etc.).
5. The domains Archaea and Bacteria are not yet categorized into kingdoms.
6. Eukarya contains four kingdoms: Protista, Fungi, Plantae, and Animalia.
7. Protists (kingdom Protista) range from unicellular forms to multicellular forms.
8. Plants (kingdom Plantae) are multicellular photosynthetic organisms.
9. Fungi (kingdom Fungi) are the molds and mushrooms.
10. Animals (kingdom Animalia) are multicellular organisms that ingest and process their food.
- 11. Bionomial nomenclature refers to a two-part
- scientific name: the genus (first word, capitalized) and the specific epithet of a species (second word, not capitalized).
12. Binomial names are based on Latin and are used universally by biologists.