Early life existed in the form of . All modern life today can be broken up into their direct, single-celled descendants and multi-cellular .

Prokaryotes and Eukaryotes

Explanation:

In the primitive atmospheric condition where there was less or no oxygen about 3.8 billion years back, the origin of life started from the appearance of the unicellular prokaryotes, which were characterized by the absence of a well-developed nucleus in their body. They were able to form a single cell within which they comprised the essential requirements for the survival of life.

About 600 million years back, the unicellular organisms gave rise to the formation of multicellular eukaryotes, which were comprised of a well-defined nucleus that was able to form after undergoing episodic evolutionary changes on earth. This is how the evolution of life has taken place from the primitive simple prokaryotic organisms to the modern-day complex multicellular eukaryotic organisms.

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.