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How long ago did the modern human species evolve?
This theoretical question has highly differing answers. Some archaeologists may argue that the modern human species evolved around 2.3 million years ago, while others believe differently.
Do Scientists claim their discovery on an octopus that hasn't evolved in 95 million years somehow proves evolution?
No, scientists do not claim that the discovery of an octopus species unchanged for 95 million years disproves evolution. Evolution is based on the concept of species changing over time in response to their environment, but not all species necessarily need to change to survive. The discovery of an unchanged species can provide valuable insights into the evolutionary process and the ways different organisms adapt to their surroundings.
Name one reason scientists believe that all life evolved from a single common ancestor?
ERVs, the fused chromosome #2, biogeographical distribution of species, vestigial genes and structures, ring species, computational genomics and proteomics, and direct observation of evolution (HeLa cells, nylonase bacteria) For more examples of directly observed speciation, put "observed instances of speciation" into google.
Did humans evolve from chimps grasshopper evolve from earthworms hydra evolve from sponges?
Human Beings evolved from the mud worm (as did many other species). Scientists recently discovered that before today's Human Being, there were several species of humans that existed in Africa. References - PBS Documentary, Becoming Human: Nova (Episodes 1-3) Note: There were no human beings or chimps 4 billion years ago because at that time, the earth was only 600 million years old. Despite what some believe, Humans did not exist when dinosaurs existed.
If Darwin believed we came from apes then where did apes originate from?
Charles Darwin believed that apes evolved from earlier, more primitive species, which in turn evolved from even earlier species. Ultimately, all mammals, including the apes and humans, evolved from the first mammal species, which in turn evolved from earlier species, and so on back to the beginning of life on Earth.
How many insect species are there?
no one really knows i guess more then 1,000
How do scientists think symbiotic relationships evolved?
Scientists believe that symbiotic relationships evolved through a process of co-evolution, where two species develop a relationship that benefits both of them. This can happen gradually over time as each species adapts to the presence of the other, leading to mutually beneficial interactions that enhance their survival and reproduction. The specific mechanisms through which symbiotic relationships evolved vary depending on the species involved and the nature of their interaction.
About how many different types of organisms have scientists discovered so far?
Scientists believe there are around 8.7 millions species on Earth, but this number could be off by 1.3 million either way. It is estimated there are 6.5 million land species and 2.2 species in the oceans.
How many kinds of species live in the biosphere?
Around 1.7 million species are currently described by science, however it is believed that there are at least 5 - 7 million more species that are as yet undocumented.
How many species do scientists think exist on earth?
Scientists estimate that there are between 8.7 million to 9.9 million species on Earth, although the actual number could be much higher due to many species still being undiscovered and undescribed.
how many animal species are in the world?
There are approximately 1.2 million known species of animals, but scientists estimate there are closer to 8.7 million animal species on earth.
When two structures of two species are very similar what can scientists infer about both species?
evolved from a common ancestor that also had the structure bg
How many kinds of organisms have scientists identified?
Scientists have identified and named around 1.7 million species of organisms, but it is estimated that there may be anywhere from 8.7 million to over 1 trillion total species on Earth.
When did the blue whale evolve as a species?
The blue whale evolved as its own species about 35 to 30 million years ago.
Did scientists believe ferrets went through natural selection explain?
yes scientists believe that because of the fact they are making a comback in their species.
How many species on Earth have antennas?
It is impossible to know exactly how many species on earth have antennas. All insects have antennas and although only 900,000 have been recorded most scientists believe there could be as many as 5 million species of insects.
How many different kinds of organisms have scientists discovered?
Scientists have discovered and described approximately 1.75 million species of organisms. However, it is estimated that there may be as many as 8.7 million species on Earth, meaning that many more species are yet to be discovered.
