Despite their differences in appearance, all bony fish have common ancestors. Their fins develop from similar structures and usually have a prescribed number of bones. Because of this, the large rudder-like dorsal fin of a sailfish, the poisonous dorsal fin of a catfish, and the tiny reduced dorsal fin of a puffer fish are said to be _____________________ structures.
Required
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2.
The diagram represents evolutionary relationships between different species.
Which species would least likely have a protein similar to species H?
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3.
Which evidence do scientists use to determine evolutionary relationships between species? Select all that apply.
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The amino acid sequence of four species, Bc, X, Y, and Z, were compared to determine their evolutionary relationship. Based on the amino acid sequence below, identify the evolutionary tree that best represents the relationship between the species.
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Wings of bats and birds: While both bat wings and bird wings allow for flight, they have different underlying structures. Bat wings are composed of skin stretched between elongated fingers, while bird wings are composed of feathers attached to a bird's arm bones.
Which type of Anatomical evidence is shown above?
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6.
__________evolution refers to the process by which species with a common ancestor evolve and accumulate differences, leading to the formation of new species. __________structures provide evidence of this divergent evolution, as they illustrate how species with a shared evolutionary history have adapted differently to their respective environments while retaining certain structural similarities.
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__________ evolution occurs when different species independently evolve similar traits or characteristics, often as adaptations to similar environmental conditions or ecological niches. __________ structures typically arise in species that are not closely related but face similar challenges in their habitats, leading to the evolution of similar solutions through natural selection.
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8.
The existing species of South American bats depend upon a wide variety of food sources, yet they have evolved from a single population of insect eating bats. The diagram below summarizes the feeding habits of some species of South American bats.
The evolutionary pattern that can be seen in the diagram is ___________________. The evidence for this evolution pattern falls under ______________________ evidence.
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9.
Appendix in humans: The appendix is a small, finger-like projection off the large intestine in humans. It was thought to be a _________________structure with no function.
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10.
The image above shows how different organisms develop. This has played a crucial role in shaping our understanding of evolutionary relationships and the mechanisms driving biological diversity. By studying the similarities and differences among different species, scientists can reconstruct evolutionary histories and elucidate the processes that have shaped life on Earth over millions of years. This evidence is based on the principle that closely related organisms often go through similar stages of development due to their shared ancestry. This type of evidence is...