How are bacteria and archaea similar?

Question

Daniel Allen · Accepted Answer

Both grow in a wide variety of habitats and conditions. Both have no nucleus, cytoskeleton or internal membranes.

The Domain Archaea wasn't recognized as a major domain of life until quite recently. Until the 20th century, most biologists considered all living things to be classifiable as either a plant or an animal. But in the 1950s and 1960s, most biologists came to the realization that this system failed to accomodate the fungi, protists, and bacteria. The Archaea constitute a domain and kingdom of single-celled microorganisms. These microbes are prokaryotes, meaning they have no cell nucleus or any other membrane-bound organelles in their cells. https://tutor.hix.ai

Madeline Andrews · Answer

undefined Bacteria and Archaea are similar in several ways:

1. **Cell Type**: Both are prokaryotes, meaning their cells lack a nucleus and membrane-bound organelles.
2. **Size and Shape**: They are generally similar in size and shape, with both groups including organisms that are spherical (cocci), rod-shaped (bacilli), and spiral.
3. **Reproduction**: They primarily reproduce asexually through binary fission.
4. **Genetic Material**: Their genetic material is usually a single circular chromosome.
5. **Cell Wall Composition**: Although the chemical makeup of their cell walls differs, both groups have cell walls that provide structure and protection.
6. **Existence in Extreme Environments**: Both include species that can survive in extreme environments, though Archaea are particularly known for thriving in extreme conditions such as high temperature, salinity, or acidity.