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Why are the Hawaiian creepers a good example of descent with modification?
Hawaiian creepers are a prime example of descent with modification due to their evolution in isolation on the Hawaiian Islands, leading to the development of unique adaptations. As they diversified from a common ancestor, different species evolved distinct traits suited to their specific ecological niches, such as variations in beak shape for foraging. This adaptive radiation illustrates how environmental factors and geographic isolation drive evolutionary changes over time, showcasing the principles of natural selection and descent with modification.
What does descent modification imply about the relationships among the different species on earth today?
That the offspring of one species may adapt to it's surroundings and live longer then though without the modification.
What about the modern organisms Darwin studied him to the area of descent modification?
Darwin studied modern organisms to understand how they descended from common ancestors and underwent modification over time through the process of evolution. He observed variations in traits among species and how these traits adapted to different environments, which contributed to their survival and reproduction. This concept of descent with modification emphasizes that species are not static but continually evolve, reflecting changes in both genetic variation and environmental pressures. Through his observations, Darwin laid the foundation for the theory of natural selection, illustrating how species adapt and diversify over generations.
How Are homologous structures such as forelimbs evidence for common descent?
Homologous structures are similar body parts in different species that point to a shared evolutionary history. The forelimbs of vertebrates, like the pentadactyl limb (having five digits), suggest a common ancestor where these structures evolved and diversified over time. The presence of these homologous structures supports the theory of common descent, as they indicate a modification of a common ancestral limb for different functions in various species.
What terms did Darwin use to explain how new species emerged?
Charles Darwin used the terms "natural selection" and "descent with modification" to explain how new species emerged. Natural selection refers to the process by which individuals with favorable traits are more likely to survive and reproduce, leading to the gradual evolution of species. Descent with modification denotes the idea that species evolve over time, sharing a common ancestor while developing distinct characteristics. Together, these concepts illustrate the dynamic nature of species and their adaptation to changing environments.
New generations are better suited to the environment than the first generation what is this called?
Descent with modification (Apex)
How did Darwin explain the patterns of distribution of plants and animals?
He explained them in terms of descent with modification, common descent and natural selection.
What is it called when newer generations are better suited to an environment than the first generation is?
descent with modification
Involves descent with modification?
evolution
Is descent with modification caused by natural selection?
No, it's the other way around: descent with modification is what you need for natural selection to happen.
What is the evolutuionary theory?
The theory of descent with modification.
Fossils show evidence of descent with modification?
yes they do
Descent with modification or change over time is?
evolution
What is descent modification?
IT is when gravity collides with snakes so the organisms
What word do biologists use when they mean descent with modification?
Biologists use the term "evolution" when referring to descent with modification, which encompasses the changes in inherited traits of a population over successive generations.
What three word phrase summarizes Darwin's mechanism of evolution?
Darwin used the phrase "descent with modification" (he didn't use the term "evolution")
Meaning of homogenous?
Having a resemblance in structure, due to descent from a common progenitor with subsequent modification; homogenetic; -- applied both to animals and plants. See Homoplastic.
