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When did life on earth begin to evolve?
Life on Earth began to evolve around 3.5 billion years ago, with the earliest forms of life being simple single-celled organisms. Over time, these organisms diversified and evolved into more complex life forms, eventually leading to the diversity of life we see on Earth today.
The presence of many different species is critical for the survival of some forms of life when...?
The presence of many different species is critical for the survival of some forms of life when environmental conditions change. This biodiversity provides resilience and adaptability, allowing ecosystems to better withstand disturbances and recover from challenges. Each species plays a unique role in maintaining the balance and functionality of the ecosystem.
What do scientist mean when they talk about the diversity of life?
When scientists talk about the diversity of life, they are referring to the variety of different species, genetic traits, and ecosystems present on Earth. This diversity is crucial for the health and stability of our planet's ecosystems and plays a key role in supporting human well-being.
What is a two-kingdom classification system no longer used by scientists?
The two-kingdom classification system grouped organisms into the categories of plants and animals. It is no longer used by scientists because it did not accurately reflect the diversity of life on Earth and failed to account for the many different forms of organisms that exist.
Biologists estimate that perhaps up to 30 million different species exist on Earth These numbers of organisms illustrate a diversity of life b unity of life c theory of evolution d natural selection e?
The 30 million different species on Earth illustrate the diversity of life. Some estimates of the number of species are even higher; even though the exact number isn't known, scientists do know there are many undiscovered species.
Is there life in the solar system?
Yes. Planet earth has many forms of life. However apart from on Earth there is no other life that we know of.
Is there life someone else in space?
There is almost certainly life out there in outer space. It could come in many forms, from protozoa, to intelligent life forms, to life forms unlike any that are found on Earth. There could be basic life forms on Mars, the satellites Titan or Europa. It is more than likely the nearest life forms on another place in the universe is countless light years from Earth, and there is an excellent chance, we will never know about these other life forms because they are too far away for us to reach travelling at far less than the speed of light.
What is life as you know it?
Life "as we know it" is a term which covers the many and varied forms which life on earth takes, from intelligent animals down to single-celled amoebas.
Why is carbon the basis of life on this planet?
It comes in many different forms and is very stable(does not decay quickly)
Meaning of the word world?
A place in which there are many different life forms,cultures, religions, races and home to many eratic seahorses.
The life of the earth--Also kindly let me know how many more years will earth exist?
The Earth is 4.5 billion years old. Life has been around for 3.5 billion years. Complex life forms originated about 500 million years ago. There is no telling if/when life will cease to exist on Earth or if/when it will be destroyed in space.
Are there any planets that can have life?
Yes, there are 2 billion planets around our solar system and many of them can host different species of life forms beyond our knowledge or understanding.
How many different forms of Christmas are there in the world?
there are many different forms of Chrsitmas but i only think there is 9. I researched lots to find this answer.
How did life appear on earth?
Christians and scientists have different ideas about this. Christians believe, quite simply, that God created everything on the Earth, from the smallest microorganisms to the gigantic redwood trees and blue whales. Christians refute that life could have occurred just by chance. Scientists have different theories about the origins of life. Many believe in a "big bang" theory, but there are many different theories out there, most of which have life arising from "spontaneous generation".
What is there life on earth and no other planet?
Life (as we on Earth know it) requires the correct combination of heat, light & sustenance to trigger it off & sustain it . That combination of factors is rare & possibly unique. However in view of the number of stars & planets in the Universe it is highly probable that life exists in many forms and on many planets outside our own solar system.
How many kilometers is an object from earth?
Different objects are at different distance from Earth.
How many forms of calligraphy are there?
There are many different styles, over 200
