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How long ago did the first plant exist on earth?
i think that the first planet existed 4.7billion years ago. Because the Sun's age is thought to be 5billion years ago and the earth 4.5billion, scientists know that Earth was not the first planet.
What do scientists think happens is population change over time?
species stay the same
Where do some scientists think the simple bacteria the were once the only form of life on earth originated?
in swapty forsets
When do scientists think that life started?
Scientists currently think that life got started between 3.8 and 3.5 billion years ago, probably less than a billion year after the formation of the Earth. It is certain that life existed by 2.7 billion years ago.
Why do scientists think that photosynthetic prokaryotes were not the first life forms on Earth?
Because They Are dumb and its very frustrating that no one can answer this question! sorry people who read this.
Are the yeti or the abominable snowman exist?
Probably not but scientists think that there might be a similar being roaming the Earth.
Why do scientists think there are s few redwood species alive today?
Scientists believe that changes in the Earth's climate cause extinction of trees;P
How many animal species have become extinct in the past year?
Scientists have identified and catalogued around 1,500,000 to 2,000,000 species (of animals and plants), most of which are insects (most of which are beetles). However, those are only the species that have been identified and described, many, many, many more exist - some scientists think there are 10 million (10,000,000) species on Earth, and others think there are 100 million (100,000,000) species on Earth! Biodiversity (the number of living organisms on Earth) is an incredibly hard thing to count. There are places on the Earth that have hardly been explored at all where diversity (the numbers of species) is extremely high, places like the tropical rain forest. The really scary thing is that, mostly as a result of the activity of human beings (pollution and destruction of the environment), lots of these species are going extinct before we even get a chance to identify them in the first place
Why do scientists think earths core contain iron?
The iron nickel core has been determined to actually exist from the examination of meteorites, from the gravitational field of Earth, and from the Earth's density in comparison to its volume.
WHY do scientists think earths core contains irons?
The iron nickel core has been determined to actually exist from the examination of meteorites, from the gravitational field of Earth, and from the Earth's density in comparison to its volume.
Why do scientists think Earths core contains iron?
The iron nickel core has been determined to actually exist from the examination of meteorites, from the gravitational field of Earth, and from the Earth's density in comparison to its volume.
What do scientists think have happened to most ancient species?
The big bang
Why do scientists think horses became extint?
The species "native horse" did go extinct and that is what scientists are talking about. The "equus ferus'' species is still alive though.
How long ago did the first plant exist on earth?
i think that the first planet existed 4.7billion years ago. Because the Sun's age is thought to be 5billion years ago and the earth 4.5billion, scientists know that Earth was not the first planet.
Why do scientists think Mars was once like the Earth?
yes
How old do scientists think that earth is?
4.6 billion years
What do scientists think happens is population change over time?
species stay the same
