Evolution

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Paleontology
Shows us that organisms have changed gradually over time as reflected in the fossil record.
Biogeography
Shows us how new species arise near the location of very similar species. Similar species share a common time and place.
Developmental Biology
Shows us that an organism builds on ancestral features as it develops from a single cell or embryo.
Morphology
Shows us how organism adapt ancestral features to new uses, even when there are more efficient solutions elsewhere in nature.
Genetics
(Darwin didn't have)
Shows us that we can group related species by the similarity of genes present in their genomes.
Paleontology Relative Dating
Uses a fossil's location in rock layers to determine that fossil's approximate age.
Paleontology Absolute Dating
Determines the fossil's actual age by measuring the amount of an element called carbon-14 in the fossil.
Developmental Biology Embryology
The branch of biology and medicine concerned with the study of embryos and their development. The embryos of most vertebrates look very similar and have similar structures.
Morphology - Comparative Anatomy
Many animals have body parts that similar in both structure and function called homologous structures.
Vestigial organs are structures that an organism has that do not have a function, though they may have had one in the past.
Genetics - DNA Evidence
Comparing the chromosomes of organisms lets scientist see how they are similar and any differences between two organisms.
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