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Why couldn't one single dichotomous key be used for all of the organisms on earth?
Wiki User
∙ 12y ago
It actually could, but no one has the living time to do that. It also could be done with speices names
Wiki User
∙ 12y ago
Anonymous
Bc
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Are there more single-celled or multi-celled organisms on earth?
multi-celled organisms have more than 1 cell.But a singe-celled organism does not.
Darwin believed that all organisms on Earth are united into a single tree of life by what?
common descent
Darwin believed that all organisms on earth are united into a single tree of life by?
common descent
What events occured that allowed single celled organisms to evolve into more complex organisms at the end of the precambrian time?
the ozone layer began to develop shielding earth from ultraviolet rays, this was hypothesized that these changes allowed species of single celled organisms to evolve into more complexed organisms
What important role do unicellular organisms play in sustaining life on Earth?
Single celled lifeforms constitute most of the life on Earth. They are the majority of the producers in Earth's ecological system. They are major contributors to the processes that replenish our atmosphere, and form the basis of the marine food chain. On a smaller scale, single celled organisms perform equally important roles: they are a major part of the digestive system of most advanced animals. In humans, they are present in our intestines to aid in the breakdown of foodstuffs. Without them, we would not survive. Without single celled organisms, no life would be possible on Earth.
What was the first thing on the earth when it was created?
Single sell organisms
What type of organisms first appeared on earth?
Earth's first organisms were the Single- Celled organismsBacteriaFungiAnd Protozoa
Where did the immigration happen first?
When a commet containing single celled organisms, or the basic materials needed for single celled organisms to develope, hit the earth.
What were the first types of creatures on earth?
Single-celled organisms, bacteria...algae
Which creature first born on Earth?
Single celled organisms were the first creatures.
What organisms first introduced oxygen into earth's atmosphere?
Colonies of algae-like single celled organisms called stromatolites
Are there more single-celled or multi-celled organisms on earth?
multi-celled organisms have more than 1 cell.But a singe-celled organism does not.
What is proharyotes?
Single celled organisms like a bacteria and are some of Earth's oldest life forms.
Darwin believed that all organisms on Earth are united into a single tree of life by what?
common descent
Darwin believed that all organisms on earth are united into a single tree of life by?
common descent
What events occurred that allowed single - celled organisms to into more complex organisms at the end of the precambrian time?
the ozone layer began to develop shielding earth from ultraviolet rays, this was hypothesized that these changes allowed species of single celled organisms to evolve into more complexed organisms
What event occurred that allowed single celled organisms to evolve into more complex organisms at the end of the Precambrian time?
the ozone layer began to develop shielding earth from ultraviolet rays, this was hypothesized that these changes allowed species of single celled organisms to evolve into more complexed organisms
