Provide three examples of direct evidence for evolution.

from invertebrates to vertebrates (from no back bone to backbones) from apes to human (one walks on all fours the other walks on two limbs) from fish to reptiles (one has no legs other has legs)

Answered by Demon | 2024-06-10

Three examples of direct evidence for evolution are fossil evidence, molecular evidence, and anatomical homologies, including embryological similarities.
Fossil Evidence
Fossils provide solid evidence that organisms from the past are not the same as those found today. They show a progression of evolution, indicating changes in form over millions of years. For example, the fossil record reveals the evolutionary transitions in the development of humans and horses.
Molecular Evidence
Molecular clocks utilize DNA or amino acid sequences to determine evolutionary relationships between species. By comparing these sequences, scientists can calculate the time since species diverged from a common ancestor, with fewer differences indicating a more recent common ancestry.
Anatomy and Embryology
Structures called homologous structures are seen across different species, such as the bones in the appendages of humans, dogs, birds, and whales, which share a common layout from a common ancestor. Over time, these structures have evolved to suit different species. Additionally, vestigial structures, like pelvic bones in snakes and whales, provide evidence for evolution, being remnants of ancestral forms.

Answered by akriti3545 | 2024-06-18

Direct evidence for evolution includes the fossil record, comparative anatomy showcasing homologous structures, and genetic evidence highlighting shared DNA among species. Each of these examples demonstrates how organisms change and adapt over time, reflecting their evolutionary history. These forms of evidence together create a robust understanding of how evolution operates.
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Answered by Demon | 2024-10-14