what is the difference between shared ancestral characteristics and shared derived characteristics?
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An ancestral character is shared with the species ancestral to more than one group: it can lead to different groups being classified together. A shared derived character is shared by the ancestral species and a single group: it is the only reliable guide to inferring phylogeny.
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Strictly speaking, convergent evolution occurs when descendants resemble each other more than their ancestors did with respect to some feature. Parallel evolution implies that two or more lineages have changed in similar ways, so that the evolved descendants are as similar to each other as their ancestors were.
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Evidence of an evolutionary common ancestor is seen in the similarity of embryos in markedly different species. Darwin used the science of embryology to support his conclusions. Embryos and the development of embryos of various species within a class are similar even if their adult forms look nothing alike.
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The correct answer is: "Ethnicity is related to culture; race is related to biological ancestry". Race is determined by physical features which are inherited by newborns from its biological ancestors (for example, black skin or white skin).
201502
Acquired traits are the one that a person develops during his lifetime. These are not passed from one generation to another. On the other hand, inherited traits are present in the person since the time of his birth and are passed on from one generation to another.
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The most crucial difference between the two terms is that a hereditary disease can be passed on from one generation to another. A genetic disease, on the other hand, may or may not be hereditary, but it is always a result of a change in an organism's genome. Let's go back to non-genetic traits.
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The term apomorphy means a specialized or derived character state; plesiomorphy refers to a primitive or ancestral trait. An same as autapomorphy is a derived trait that is unique to one group, while a same as synapomorphy is a derived trait shared by two or more groups.
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Heredity is the transmission of genetic characteristics from parents to offspring and is often referred to as genetics. Inheritance depicts the pathway of the genetic traits and its expression from one to another generation.
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New traits can also come from transfer of genes between populations, as in migration, or between species, in horizontal gene transfer. Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
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Homologous structures share a common ancestry, but not necessarily a common function. Analogous structures share a common function, but do not share a common ancestry. ... Similar patterns of embryological development provide further evidence that organisms have descended from a common ancestor.
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Fortunately, biologists have developed a list of eight characteristics shared by all living things. Characteristics are traits or qualities. Those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution.
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Ethnicity connotes shared cultural traits and a shared group history. Some ethnic groups also share linguistic or religious traits, while others share a common group history but not a common language or religion. Race presumes shared biological or genetic traits, whether actual or asserted.
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['Anatomy. Species may share similar physical features because the feature was present in a common ancestor (homologous structures).', 'Molecular biology. DNA and the genetic code reflect the shared ancestry of life. ... ', 'Biogeography. ... ', 'Fossils. ... ', 'Direct observation.']
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Inheritance is one in which a new class is created (derived class) that inherits the features from the already existing class(Base class). Whereas polymorphism is that which can be defined in multiple forms. ... Inheritance supports the concept of reusability and reduces code length in object-oriented programming.
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These acquired traits can not be passed on genetically. You can't inherit your uncle's knowledge, skills, ideas or memories and it doesn't work that way with other organisms either. Acquired traits include things such as calluses on fingers, larger muscle size from exercise or from avoiding predators.
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Evolution in organisms occurs through changes in heritable traits—the inherited characteristics of an organism. In humans, for example, eye colour is an inherited characteristic and an individual might inherit the "brown-eye trait" from one of their parents.
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Inherited traits are the traits you get from your parents through the genes they pass down to you, their offspring. Environmental traits are influenced by your environment. ... These traits are environmental traits because they are traits that you choose or learn, or that are influenced by the place you live.