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In natural selection, the finches on the Galapagos Islands. The bug population greatly decreases, and only the finches with the strong beaks were able to survive as they could access the nut meats encased in hard shells. However, when a drought swept through the area, the trees didn't bear any nuts, and so the finches with the larger beaks died off and the finches with the slimmer beaks survived as they could reach the bugs deep in the crevasses of the tree bark. Darwin made this observation himself.
But according to the fossil record, scientists have yet to find two completely separate organisms that have similar characteristics that show an evolutionary relationship. Many have thought they came upon the missing link, only to find it was an embarrassing mistake, i.e. Nebraska Man was based upon a pig tooth.
The fossil record is composed of mainly gaps, but scientists are working hard to try to fill in the gaps the best they can, while trying to exclude any theory resulting in "intelligent design", though a good handful of scientists, including Richard Dawkins, have stated that there is a great chance of intelligent design.
If you look at it from a Biblical viewpoint, all creatures were created uniquely different. Each species is different and serves a different purpose. It all boils down to, what do you want to believe, scientific theories or in an Intelligent Creator?
What else can I help you with?
What class of aquatic creatures evolved from artiodactyla?
Whales and dolphins are believed to have evolved from artiodactyls. This is supported by genetic and anatomical evidence, showing a close evolutionary relationship between these groups.
What is morpho- anatomy?
Morpho-anatomy is the study of the structure and form of organisms, including the relationship between their external and internal features. It involves observing and analyzing the physical characteristics and shape of living organisms to understand their function and evolutionary significance.
Which term is defined as a close relationship between two organisms of different species?
A symbiotic relationship is defined as a close relationship between two organisms of different species. This relationship can be mutually beneficial (mutualism), one-sided benefit (parasitism), or neutral (commensalism).
What are three pieces of evidence for evolution?
Fossil record shows a progression of organisms from simple to complex forms over time. Comparative anatomy reveals similarities in bone structure and development between different species, indicating a common evolutionary ancestry. Genetic similarity and shared sequences in DNA among different species provide strong evidence for common ancestry and evolution.
What is the most conclusive evidence used in establishing the relationship of closely related species?
DNA sequencing is often the most conclusive evidence used to establish the relationship of closely related species. By comparing the genetic sequences of different species, scientists can determine the degree of similarity and divergence, providing insights into their evolutionary relationships. Additionally, the presence of shared anatomical features or similarities in embryonic development can also support the relationship between closely related species.
What is the most accurate evidence of an evolutionary relationship between two organisms?
The most accurate evidence of an evolutionary relationship between two organisms is the presence of shared genetic similarities, specifically in their DNA sequences. This indicates a common ancestry and evolutionary history between the two organisms.
Why the homologous structures are evidence of evolutionary relationship?
They show similarities between organisms structure. if the similarities are large then it shows that those organisms share a common ancestor.
Biochemical analysts use similarities in what as evidence for evolutionary relationships?
Biochemical analysts use similarities in molecules like DNA, proteins, and enzymes as evidence for evolutionary relationships. The more similarities there are between the molecules of different organisms, the closer their evolutionary relationship is believed to be.
What is the difference between anatomical embryological and biochemical evidence?
Anatomical embryological evidence refers to similarities in developmental patterns and structures among different organisms, providing insights into their evolutionary relationships. Biochemical evidence involves comparisons of proteins, DNA sequences, and other molecules to understand evolutionary relationships. Both types of evidence can complement each other in confirming evolutionary relationships between organisms.
What scientist first hypothesized that gene sequences cold provide new insights into evolutionary relationship between organisms such as microbes?
Pauling
What is phylogeny?
I think you mean phylogeny. Phylogeny is the evolutionary history of a species or group of related species.
Is it true that anatomy and physiology are never used to determine evolutionary relationships between phyla?
Anatomy and physiology are used, as they provide insights into the structural and functional adaptations of organisms, which can help determine evolutionary relationships between phyla. These aspects, along with molecular data and other evidence, are important for understanding the evolutionary history of different groups of organisms.
What Scientist first hypothesized that gene sequences could provide new insights into the evolutionary relationship between organisms such as microbes?
Carl Woese was the scientist who first hypothesized that gene sequences could provide new insights into the evolutionary relationship between organisms, particularly microbes. He pioneered the use of molecular techniques to study the genetic relationships between different species of microorganisms.
Scientists determine evolutionary relationships by looking at breeding behavior geological distribution and structural similarities between organisms true or false?
It is true that scientists determine evolutionary relationships by looking at breeding behavior, geological distribution, and structural similarities between organisms. Scientists can use other criteria to determine evolutionary relationships.
Why evolutionary relationship are stronger between organism that have close biochemical similarities than between organism that do not close biochenical simillarities?
Organisms with close biochemical similarities likely share a more recent common ancestor, leading to a stronger evolutionary relationship based on a more recent divergence from a common gene pool. This shared genetic heritage results in similar biochemical pathways and molecular mechanisms, reinforcing the evolutionary relationship between closely related organisms. In contrast, organisms with greater biochemical differences likely diverged from a common ancestor further back in evolutionary history, leading to a weaker relationship due to more distinct genetic and biochemical characteristics.
What is molecular evidence?
Molecular evidence refers to the use of genetic material such as DNA or proteins to understand evolutionary relationships between different species. By comparing molecular sequences, scientists can determine how closely related organisms are and study their genetic diversity and evolutionary history. This type of evidence is widely used in the field of molecular biology and genetics to gain insights into the evolutionary processes that have shaped life on Earth.
Given the morphological evidence what evolutionary relationship might exist between zygomycetes and ascomycetes?
Zygomycetes and ascomycetes are considered sister taxa within the fungal kingdom based on morphological evidence, such as the presence of nonseptate hyphae, asexual spores, and sexual spores enclosed in sac-like structures. This suggests a close evolutionary relationship between the two groups, possibly sharing a common ancestor in fungal evolution.
