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What are two things that scientists learn from the fossils record?
The fossil record provides evidence about the history of life and past environment on earth. The fossil record also shows that different groups of organism have changed over time.
Scientists group species on an evolutionary tree based on what?
gene similarities, physical structures, and fossil record.
What methods do scientists use to obtain data for phylogenetic trees?
Scientists use the fossil record and structural and molecular comparisons to construct phylogenetic trees. This answer came straight from my freshman Biology book.
To be useful as an index fossil fuel spices must have existed for how long?
To be useful as an index fossil fuel, spices must have existed for about 1000 years.
What is the definition of range of a fossil species?
The range would be the span of time between the point in the geologic record the fossil organism first appeared to the point in the geologic record that the organism last appeared.
What two major developments helped scientists explain the fossil record?
The principle of fossil succession and the theory of evolution have helped scientists explain the fossil record.
What do scientists use the fossil record for?
Recording fossils No.
What do scientists use to study macro evolution?
The fossil record
What do scientists often use to study macroevolution?
The fossil record
What does the lack of fossil record for some of the Earths history mean to scientists?
that the fossil are oder then what we think
What does the lack of a fossil record for some of the earth's history mean to scientists?
that the fossil are oder then what we think
How did Charles Darwin view the fossil record?
useful support for his theory
What tool can help scientists to determine ancient species became extinct?
fossil record
Why are species missing from the fossil record?
because sometimes the scientists don't find the fossils
Scientists determine evolutionary relationships between animal phyla using evidence from the?
Fossil record
What are two things that scientists learn from the fossils record?
The fossil record provides evidence about the history of life and past environment on earth. The fossil record also shows that different groups of organism have changed over time.
What do scientists today rely on primarily to determine evoluutionary history?
Scientists rely primarily on the fossil record to determine evolutionary history. Another way of determination is examining the genetic record.
