Anatomy that is similar in structure but differ in function (bat wings, alligator forelimbs, human arms, penguin wings)
Homologous structures
Analogous structures
Vestigial structures
Body parts that share a common function, but not structure like bird wings & butterfly wings
Homologous structures
Analogous structures
Vestigial structures
Structures that are reduced in size and are no longer useful.
Homologous structures
Analogous structures
Vestigial structures
Descent with modification from a common ancestor. There must be change in gene frequency over time.
Adaption
Evolution
Comparative anatomy
Scientist who studies fossils.
Paleontologist
Embryologist
Archaeologist
Organisms that are genetically similar and can reproduce to make fertile offspring.
Population
Hybrids
Species
Inherited trait of a species that develops over time, enabling the species to survive (like opposable thumbs, thorns, camouflage).
Adaptation
Evolution
Natural Selection
Part of Darwin’s evolutionary theory, based on four ideas: excess reproduction, variations, inheritance and the advantages of specific traits in an environment
Adaptation
Evolution
Natural Selection
Study of the similarities and differences in the structures of different species
Embryology
Evolution
Comparative Anatomy
The branch of zoology studying the early development of living things.
Embryology
Evolution
Comparative Anatomy
The process of directed breeding to produce offspring with desired traits
(AKA Selective Breeding).
Artificial Selection
Natural Selection
Adaptation
More primitive features, such as teeth and tails, that appear in ancestral forms
Ancestral Traits
Derived Traits
Adaptations
Newly evolved features, such as feathers, that do not appear in the fossils of common ancestors
Ancestral Traits
Derived Traits
Adaptations
A well-tested explanation for a set of observations or experimental results