Each organism has a specific sequence of DNA, this is what makes up the organism itself appearance and functions. If a sequence in the DNA has changed, so has an aspect of the organism. If there are enough changes over time that a scientist has monitored, then a new or modified species has formed.
Because DNA has information about the past family.
Molecular Clocks
genetic comparisons
They use a taxonomic map to help classify organisms. The placement of organisms on this was originally based on similarities between species. Today we are able to look at their actual genes, which has resulted in a better understanding of evolutionary relationships - or the lack of them- and has resulted in some re-classification.
(False )They use a taxonomic maping to help classify organisms.Yes
They use a taxonomic mapping to help classify organisms.
True
The homologous structures between different evolutionary structures help taxonomists in classifying organisms.
The number and structure of chromosomes help determine evolutionary relationships between species. Chromosome comparison helps to provide evidence of the relationships in a species.
chromosommes
They use a taxonomic map to help classify organisms. The placement of organisms on this was originally based on similarities between species. Today we are able to look at their actual genes, which has resulted in a better understanding of evolutionary relationships - or the lack of them- and has resulted in some re-classification.
You know that Mrs. Lilliendahl doesn't approve of wikianswers... tisk tisk...
Analysis of DNA helps scientists establish an evolutionary classification scheme by comparing the genetic sequences of different organisms. The more similar the DNA sequences are between two species, the more closely related they are believed to be. By studying the similarities and differences in DNA, scientists can determine how different species are related to one another and create a classification scheme based on their evolutionary relationships.
True
Yes
Genes can be considered derived characters because they are inherited traits that have evolved over time, showing differences from ancestral forms. By comparing genes across different species, scientists can determine relationships and evolutionary history. Derived characters in genes can help track the divergence and relationships between organisms.
How did the discovery of temporal skull holes help scientists determine phylogeny of amniotes
(False )They use a taxonomic maping to help classify organisms.Yes
They use a taxonomic mapping to help classify organisms.
ecology