their contribution on earth was to keep earth clean in a way.
Aristarchus proposed the heliocentric model of the universe, suggesting that the Earth and other planets revolve around the Sun. This was a major contribution to Earth science as it challenged the prevailing geocentric model and laid the groundwork for our modern understanding of the solar system.
Life has shaped Earth through processes such as photosynthesis, which has transformed the atmosphere, while also influencing the climate and geography of the planet. At the same time, Earth's physical and chemical environment has provided the conditions necessary for life to evolve and thrive. Both life and Earth have had an interdependent relationship, each influencing the other in various ways.
The zone of life on Earth is called the biosphere. It includes all regions of the Earth's surface, atmosphere, and hydrosphere where living organisms are found. This zone supports a wide variety of life forms and ecosystems.
Roughly 70% of the Earth's surface is covered by water, which is home to a significant amount of life. However, most life on Earth exists in the oceans rather than on land.
The presence of oxygen in Earth's atmosphere suggests there is life on Earth. Oxygen is produced primarily by plants and certain bacteria through the process of photosynthesis. Its abundance indicates the ongoing presence of life forms that release oxygen as a byproduct of their metabolic processes.
how long has archaebacteria been on earth? how long has archaebacteria been on earth?
Archaebacteria are the oldest and most primitive forms of life on planet Earth. It is postulated that primitive life on other planets would be most likely to resemble Archaebacteria. In addition, Archaebacteria were the first life forms to exist on Earth, so studying them allows xenobiologists to postulate how life may come into being on other planets.
Scientists study archaebacteria because they are capable of surviving in extreme environments similar to those found on other planets. By understanding how these organisms thrive in harsh conditions on Earth, researchers can gain insights into the potential for life to exist in similar environments elsewhere in the universe. Archaebacteria also provide valuable clues about the origins and evolution of life on Earth.
Archaebacteria are some of the oldest organisms living on Earth. They are considered simple because of their external body structure.
Archaebacteria are unicellular prokaryotes that are the oldest living organisms on Earth. Some characteristics include survival in oxygen-free environments, being extremophiles and reproduction is asexual.
According to the books archaebacteria was thought to be the first living being existing when the earth was cooling down initially. they were the methanogenic, thermophillic and most chiefly were anaerobic. Would these characteristics have been helped the earth to create its present environment?
eubacteria and archaebacteria
Eubacteria ans Archaebacteria
Atmosphere makes huge efforts. It is the one because of which life sustains.
what is the life and contribution of mathematics???
they were probably the first multicelluar life- forms
There is strong and growing evidence that Archaea are the closest current example of the original form of life on Earth and it is thus possible that the origins of life on other planets may be found in similar organisms. More Information: The term archaebacteria is now considered outdated since in recent years it has come to be understood that Archaea and Bacteria share little and have long and distinct evolutionary backgrounds. The Archaea are single-celled microorganisms with no cell nucleus or any other membrane-bound organelles. As such, the are highly simplified. The archaeal lineage may be the most ancient that exists on Earth. See related links.