13 lines
614 B
Markdown
13 lines
614 B
Markdown
[[G11 Pre-AP Biology]]
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Species relatedness can be determined using a phylogenetic tree.
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Phylogenetic trees are formed using evidence.
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* Anatomical Evidence:
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* Studying structure and form.
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* Includes size shape and other physical features.
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- Physiological Evidence:
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* Study of functions/processes, such as chemical and internal processes.
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* Example, guinea pig's insulin is closer to humans than mice.
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- DNA Evidence:
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- Studying DNA sequence (bases) or amino acid sequence. DNA similarity positively correlates with relation.
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In terms of evidence credibility for relatedness, DNA > physiological > anatomical. |