Question

In the early classification system, all bacteria were classified in one kingdom. Bacteria was later broken up into two separate kingdoms, Eubacteria and Archaea. Which of the following best explains a reason for this change?
- As new organisms were discovered, new kingdoms were created to sort them based on ability to interbreed.
- It was discovered that the organisms in each of the five kingdoms have a different method of obtaining nutrients and are therefore fundamentally different.
- Technological advances led to the discovery of single-celled organisms and increased our understanding of relationships between organisms.
- Genetic research led to the discovery that each of these five kingdoms has a unique evolutionary ancestor.

Answer 1

The reason for this change is "Technological advances led to the discovery of single-celled organisms and increased our understanding of relationships between organisms"

Why bacteria and archaea should be classified into different kingdoms?

Archea and bacteria are both prokaryotic organisms ( organisms without defined organelles and nucleus) that share common features such as a similar morphology and similar ways to obtain food/energy. However,  these organisms have important differences such as RNA type, they have a slightly different morphology and they live in different habitats.

Why did this change in classification occurred?

This change occurred due to technological advances. Indeed, the classification of organisms into 4 kingdoms occurred by the beginning of the 20th century when unicellular prokaryotic organisms had not been completely studied, and therefore it has not been determined this group included two sub-groups.

Learn more about organisms in: brainly.com/question/12825206