Evidence for Evolution by https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6 Explore the fascinating evidence that supports the theory of evolution! Learn about important structures, processes, and concepts that help us understand how life on Earth has changed over time. en-us 2025-04-30 15:32:33 UTC 2025-05-01 11:01:38 UTC hello@padlet.com What is Evolution? schwyhartshelby https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857568 Evolution is the process by which living things change over many generations. These changes help organisms survive better in their environment.

]]> 2025-04-30 15:32:34 UTC https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857568 What is Fitness? schwyhartshelby https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857619 2025-04-30 15:32:36 UTC https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857619 Homologous Structures: Same Blueprint, Different Uses schwyhartshelby https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857625 Homologous structures are body parts that have the same basic structure but different uses. Think about a human arm, a bat wing, and a dog paw- they all have similar bones inside. This suggests they came from a common ancestor.

]]> 2025-04-30 15:32:37 UTC https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857625 Analogous Structures: Different Blueprint, Same Job schwyhartshelby https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857626 Analogous structures are body parts that do the same job but evolved differently. For example, bird wings and dragon fly wings both help with flying, but they're built very differently. This shows how different species can evolve similar solutions to the same problem.

]]> 2025-04-30 15:32:37 UTC https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857626 Vestigial Structures: Nature's Leftovers schwyhartshelby https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857627 Vestigial structures are body parts that no longer have a clear purpose. Like your tailbone - it's what's left of the tail our ancient ancestors had. Whales have tiny hip bones they don't use, and some snakes have tiny leg bones. These are clues about how species changed over time.

]]> 2025-04-30 15:32:37 UTC https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857627 Fossils: Windows to the Past schwyhartshelby https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857634

A fossil is the preserved remains of an organism, or the trace evidence of an organism's existence in the past. Most fossils form in sedimentary rock, which is made by many layers of sediment, or small rock particles. The deeper we dig in rock layers, the older the fossils we find.

]]> 2025-04-30 15:32:37 UTC https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857634 Uniformitarianism: The Present is the Key to the Past schwyhartshelby https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857637 2025-04-30 15:32:37 UTC https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3431857637 Developmental Similarities schwyhartshelby https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3432148160 All vertebrates have three basic body features as embryos—a tail, limb buds, and pharyngeal arches.


Human embryos have a tail and pharyngeal arches, just as fish do. Homeobox genes direct the future development of these structures. Structures that once appeared very similar eventually differentiate in both structure and function.


For example, pharyngeal arches become gills in adult fish. In mammals, however, pharyngeal arches develop into ear and throat structures.

]]> 2025-04-30 19:53:49 UTC https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3432148160 Homeobox Genes: Blueprints of Development schwyhartshelby https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3432148828 2025-04-30 19:54:35 UTC https://padlet.com/craftyweaknessliteracy/jmv712jggcoxkuc6/wish/3432148828