The National Science Foundation's "Tree of Life" project estimates that there could be anywhere from 5 million to 100 million species on the planet, but science has only identified about 2 million.
Upwards to the trillions.
about 40 million species are estimated to live on earth
There are many species of horses that are alive and inhabit the Earth today. There are domesticated horses that are well taken care of, and feral horses that roam the Earth, there is an estimated 59,000,000 horses in the world.
Microbes were the first organisms to inhabit earth. They are single-cell organisms like bacteria, fungi and protozoa
No, he recognised that species evolve into new species.
No. The term species denotes a very specific group of organisms. It is estimated that the average extinction rate on Earth is roughly one species per year. Currently it is much higher.
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.
The largest numbers of species of organisms on the earth are currently bacteria. They out number plants and animals by far.
3 to 30 million .
There are an estimated 9,000 to 10,000 species of invertebrates on earth and that takes up 98% of all types of species on earth.
That has not been counted, only estimated.
There is an estimated amount of about 7 billion covenant units, about the same as Earth.
There are about 5-100 species, but scientist have only discovered about 2 million. =)
Gamma rays are not necessarily harmful to the planet Earth, but to all the living organisms that inhabit it, as Gamma is a powerful form of radiation.
Organisms that once lived on earth but have all died out are extinct.
about 60 billion people! well by now a bit more than that------------------------------------------------------------------------That's incorrect if I may put it bluntly.There are currently around 7.000.000.000 (7Billion) human beings living on Earth but I believe that was not his/her question.If you mean how many living beings (as in "living organisms") are estimated to inhabit the earth, including bacteria, then the answer is 3 X 10 to the 33rd power (3,000 quintillion, 3X10^33) and around 75% of that is bacteria.IT--
When there are no more known living members of a species, the species is said to be extinct.
*the number of species on Earth. *the variety of species on Earth *the variability of organisms within a single species. Study Island question: I, II, and III
2 million rounded
There are estimated to be between six and ten million species of insects living on Earth today, and they may make up as much as 90% of the animal species on Earth.
About 8.7 million (give or take 1.3 million) is the new, estimated total number of species on Earth -- the most precise calculation ever offered -- with 6.5 million species on land and 2.2 million in oceans. Announced by the Census of Marine Life, the figure is based on a new analytical technique. The number of species on Earth had been estimated previously at 3 million to 100 million. United Nations Farms
The word inhabit means to live in or occupy a place or environment. For example, as humans, we inhabit planet earth.
"They" happened by accident (i.e. mutations), and the ones that were more efficient eat the less efficient. That's life.