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How do scientists know that organisms that lived millions of years ago are related to organisms of today?
Wiki User
∙ 8y ago
They can track how long that fossil has been around by using carbon dtaing. They can also use an index fossil that is in the same rock layer. When they get the date of the fossil they can figure out what it might look like and how it ate or how it moved
Wiki User
∙ 14y ago
Wiki User
∙ 8y agoLargely through taxonomic similarity.
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What does it mean for species to have an evolutionary relationship?
If two organisms share an evolutionary relationship, that means that they have a common ancestor on the evolutionary tree. The more recently the shared common ancestor lived, the more closely related the two present organisms are, evolutionarily.
What is the mating of two closely related individuals?
Organisms sharing a common ancestor are of common descent. The LUA , the last universal ancestor, lived 3.9 billion years ago.
Which of the following can fossils teach us about the earth?
Fossils indicate several things about Earth's past: - the organisms that lived then, and by extension the organisms in their food chain - the climate in the area where the organism lived - how plate tectonics have moved landmasses that once were joined together
How do scientists think that the first multicellular organism arose?
The oldest fossils of multicellular organism are from tiny algae that lived about 1.5 billions years ago. By 600 million years ago the first multicellular animals-jellyfish-like organisms -had evolved.
Which branches of natural science include the study of an organism that lived 10 million years ago?
Paleontology is the study of prehistoric life. Paleozoology is the study of prehistoric animals. Paleobotany is the study of prehistoric plants.
How long have unicellular organisms have lived on Earth?
they have lived for up to millions of years
What is Formed from organisms that lived millions of years ago?
petroleum
Come from the bodies of dead organisms that lived millions of years ago?
coalpetroleumamber
How do scientists know that mollusks lived in Earth's oceans about 540 millions years ago?
fossils
How do Scientists know that the first organisms were simple Unicellular Organisms?
microfossils A+ ally barclay
What do fossils tell scientists about living things?
Fossils reveal what organisms lived before us.
Why do scientists believe that animals are related to animals that once lived on your plant?
no
How do scientist know that the first organisms were simple unicellular organisms?
Scientists data can only date back to when these simple, unicelluar organisms lived and thus believe other living organisms evolved through them.
What organisms that lived hundreds of thousands of millions of years ago with bodies divided into three sections?
hundreds of thousands of millions of years ago is too far in the past - the universe is only 13.75 billion years old!However I know what you are asking and the organisms divided into three parts were the "trilobites". They lived about 500 million years ago.
Which branches of natural science include the study of an organism that lived 10 millions years ago?
Life Science and Earth Science are branches of Natural Science that include the study of organisms from millions of years ago.
How do scientist know that the first organism were simple unicellular organism?
Scientists data can only date back to when these simple, unicelluar organisms lived and thus believe other living organisms evolved through them.
What scientists lived in Greece?
Some of the scientists who lived in Greece were pythagoras, ptolemy, aristotle, and euclid
