Question

The organism likely to be most similar to the first life form that evolved on the earth is

Answer 1

archaebacteria is most primitive organism

Answer 2

Answer:

Archaebacteria are known to be the oldest living organisms on earth. They belong to the kingdom Monera and are classified as bacteria because they resemble bacteria when observed under a microscope. Apart from this, they are completely distinct from prokaryotes. However, they share slightly common characteristics with the eukaryotes.

Explanation:

• A primordial bacterium microorganism is known as an archaebacteria. It just has a single cell, and the environment it lives in is harsh. The samples are quite sour or spicy (the most common instance is methanogens). In other words, Archaebacteria are not only primitive but also single-cell microorganisms, also referred to as prokaryotes since they lack a cell nucleus. Every archaeon possesses the potential to survive under hostile conditions.

The following are some crucial traits of archaebacteria:

• Only archaebacteria are capable of methanogenesis because they are obligatory or facultative anaerobes, which means they thrive in the absence of oxygen.
• Lipids make up the cell membranes of the Archaebacteria.
• The Archaebacteria are shaped and supported by their hard cell wall. Additionally, it prevents the cell from bursting in hypotonic circumstances.
• Pseudomurein, which makes up the cell wall, shields archaebacteria from Lysozyme's actions. An enzyme called lysozyme, which is secreted by the host's immune system, breaks down the cell walls of harmful bacteria.
• These lack organelles with membranes, like nuclei, endoplasmic reticulum, mitochondria, lysosomes, or chloroplasts. All the substances necessary for nourishment and metabolism are present in its dense cytoplasm.