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If evolution is true why are there still single cell primitive organisms?
Wiki User
∙ 14y ago
Single cell organisms still exist because populations evolve, rather than entire species. Additionally, if an organism is fit in it's environment, it is not pressured into evolving.
Wiki User
∙ 14y ago
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The complexity of living systems is what?
The complexity of living systems is commonly found in their structure and function of the organisms. This complexity involves species, organisms, biosphere and biological evolution and is still being researched.
When are the esophagus and trachea created in a womb?
In the earliest fetal stage, the trachea, which is the windpipe, and the esophagus, which is the foodpipe are still a single tube called the primitive foregut. The primitive forgut divides into two tubes between the 23rd and 28th day of pregnancy - that's often before the woman even knows she is pregnant.
Are trilobite fossils older than fish fossils?
No. Trilobytes are the oldest fossils ever found. They are the reason the theory of evolution is still only a theory. They were complex organisms with all the basic organs, complex eyes and a respitory sytem. If evolution is true, why for over two centuries have no fossils been found leading up to their evolutionary "place."
How do American bald eagles adapt to their environment?
They adapt via evolution like all other animals do or have done , darwins theory of evolution still to this day is relative.
How did the fossils Darwin observed compare with the living organisms he studied?
Darwin's observations regarding ostriches led him to the theory of Evolution. For example, when he visited one part of Argentina, he noticed that the ostriches were similar, not the same, to ostriches from another region of Argentina. The fossil record also mimicked this loosely. Thus, Darwin began to look for a viable theory that could answer this. Hence, the theory of Evolution was born, which made the scientific explanation for life as we know it today. I hope this answers your question.
Do evolution stop?
No. Evolution is the change in allele frequency over time in a population of organisms. This may be the result of stabilizing selection, but is still evolution.
The complexity of living systems is what?
The complexity of living systems is commonly found in their structure and function of the organisms. This complexity involves species, organisms, biosphere and biological evolution and is still being researched.
Does a single-celled organism have to live in a small space to live?
No, single-celled organisms can live nearly anywhere. Amoebas can grow to be visible with the naked eye, but are still single celled.
How does Lamarck explain that organisms have a tendency to adapt and improve yet throughout the world the lowest forms of life still exist?
Obviously he was wrong. Organisms evolve, Evolution is not progressive, does not plan for the future and is not linear. The average tendency is for organisms to become more complex, but someone forgot to tell barnacles and tape worms, among others, as they have got less complex. Evolution is only change over time and Lamarck was wrong about ' improvements. '
The most primitive phyla to still have a head and organs is?
Platyhelminthes !
Has the rite of spring lost its primitivism?
No. It is still as primitive as ever.
When are the esophagus and trachea created in a womb?
In the earliest fetal stage, the trachea, which is the windpipe, and the esophagus, which is the foodpipe are still a single tube called the primitive foregut. The primitive forgut divides into two tubes between the 23rd and 28th day of pregnancy - that's often before the woman even knows she is pregnant.
Is the Human race still in a state of primitive technology?
I think the human kind is not in the primitive stage anymore. We are in the modern stage right now.
Which medicine was created in the Primitive Era and is still used today?
morphine
Why we can't die easily?
Evolution produces species that have the ability to survive and to reproduce. Organisms which die too easily would have died out long ago and would not still be present in the world as living species.
When evolution started?
In living organisms, evolution started in the very first living cell that contained mutable nucleic acid. The instant a reproductive living organism ( immediately post-abiogenesis) that contained a nucleic acid, evolution could begin. This would have happened in the first life of the Precambrian (3 800 million years ago).In the world of anthropic learning and discovering the Universe, Charles Darwin thought up a name for the mechanism of evolution in the 1800s and published On the Origin of Species in 1859. In other words the world has known about evolution since 1859.
Why do people think mars had life?
There was a possibility that there had been inthe far past. There is evidence of running water for example. Now long gone. It was not so much as thinking there had been, or still was, primitive organisms, it was checking to see if there was any evidence.
