0
The first life is said to have come into existence on Earth approximately 3.5 billion years ago. However, the first "complex" life is said to have come into existence approximately 1 billion years after this. When it became "abundant," is rather unknown, though it probably took several hundred thousand years for these complex organisms to reproduce and to become stable.
What else can I help you with?
What is the most abundent group of organisms on earth?
bacteria
Why were single-celled organisms dominant?
The reason single celled organisms were do dominant was because they were the least complex creatures. As single-celled organisms evolve into more complex creatures, their requirements also become more complex and it becomes harder for them to survive.
Is 30 a abundent number?
yes 30 is a abundent number because it is a big number so thats what abundent means
How has the heart developed and changed as organisms have become more complex?
There is no evidence that the heart has developed and changed as organisms have become more complex over time. Scientists do believe that the human heart is a product of evolution and has spent millions of years perfecting itself in order to keep humans alive.
What are advantages of human beings are complex organisms?
advantages of human beings are complex organisms
What is the general rule about the complexity of organisms as they evolve?
The general rule about the complexity of organisms as they evolves is that it increases over time. Organisms start out very basic but can become very complex as they evolve over many generations.
Why do complex organisms need specialized cell?
Complex organisms need cells that perform many different functions. Complex organisms are capable of a lot of different things, and that variety needs to be supported on the cellular level. Without them, complex organisms cannot perform different functions.
What are the second most abundent gas on earth?
the second most abundent gas in the atmosphere is oxygen and the first in nitrogen
What is the name for a complex organisms groups of organisms?
System
How do limited resources promote competition?
Competition occurs when two organisms attempt to control the same resource. In an environment where resources are abundent, this does not necessarily occur. However, if a necessary resource is limited, then competition occurs between organisms competing for the resource.
Which evolved first - organisms with complex body structures or those with simple body structures?
Complex organisms evolved from simple organisms, so simple organisms evolved first.
Which kingdom consist only of complex multicellular eukaryotic organisms which?
Animalia is the kingdom that consists only of complex multicellular eukaryotic organisms.
