Evidence For Evolutionary Change — a labelled NEET Biology diagram with a definitions lexicon.
Evidence for Evolutionary Change Labelled parts: Human, Whale, Bat, Horse, Humerus, Radius, Ulna, Carpals, Digits, Homologous organs, Divergent evolution, Butterfly wing, Bird wing, Analogous organs, Convergent evolution, Archaeopteryx, Teeth, Clawed wings, Bony tail, Feathers, Wishbone, Miller-Urey experiment, Electrodes, Spark discharge, Gases, Water vapor, Condenser, Cooling water out, Cooling water in, Organic compounds. Organs in different species that are structurally similar because they were inherited from a common ancestor, even if they perform different functions (e.g., human arm and bat wing). FYI: Homology provides evidence for common ancestry and evolutionary divergence. These are structures in different species that have similar functions but evolved independently and do not share a common ancestral origin. They demonstrate convergent evolution. FYI: The wings of a bat (mammal) and a bird are classic examples of analogous organs, as their structure and evolutionary origin are different despite serving the same function (flight). This is a fossilized creature representing a transitional form between non-avian dinosaurs and modern birds. It possesses a mix of reptilian features (like teeth and a long tail) and avian features (like feathers). FYI: The presence of both reptilian characteristics (teeth, bony tail) and avian characteristics (feathers, wing structure) in Archaeopteryx supports the theory of evolution. This early experiment simulated the early Earth's atmosphere (containing methane, ammonia, hydrogen, and methane) and demonstrated that organic amino acids could spontaneously form under these conditions. It provided early support for abiogenesis. FYI: The experiment showed that simple inorganic molecules can yield complex organic molecules, suggesting that life did not necessarily arise from pre-existing life (biogenesis). Feathers are specialized epidermal appendages found in birds and some dinosaurs, primarily used for flight, insulation, and display. They are composed mainly of keratin. FYI: Feathers are considered a key evolutionary feature linking reptiles and birds, and their structure is crucial for flight mechanics.