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What are three criteria used to determine whether something is homology or analogy?
Its in your txt book you dumb freshman
Two species have homologous structures what do these homologous strcutures show about the evolutionary relationship between the two species?
The presence of homologous structures (for example, the bone structure in chimpanzee arms, human arms, and whale flippers) indicates that the species sharing that homologous structure share a common ancestor.
What is a similar structure that related species inherit from a common ancestor?
Homologous structures are similar structures that related species inherit from a common ancestor. These structures may have different functions in different species but share a similar underlying anatomy, suggesting shared evolutionary origins. Examples include the wing of a bird and the flipper of a whale, both being modified versions of the forelimb structure shared by their common ancestor.
What describes closely related species?
Closely related species are species that share a recent common ancestor and have a high degree of genetic similarity. They often have similar physical traits, behaviors, and ecological roles, indicating a close evolutionary relationship.
How does the structure of phylogeny chart explain homologous structures in organisms?
A phylogeny chart illustrates the evolutionary relationships among different species, with branches representing common ancestors. Homologous structures, which are anatomical features that share a similar origin but may serve different functions, are indicative of these shared ancestry. By analyzing the branching patterns in a phylogenetic tree, scientists can identify which organisms share these homologous traits, providing insight into how evolutionary processes shape biodiversity. Thus, the structure of the phylogeny chart visually represents the connections that give rise to homologous structures across various species.
True or False If two modern organisms are distantly related in an evolutionary sense then one should expect that they should share fewer homologous structures than two more closely related organisms?
True. The more distantly related two organisms are in evolutionary terms, the fewer homologous structures they are likely to share. Homologous structures are features that have a common evolutionary origin, so closely related organisms are expected to have more similarities in their structures compared to more distantly related organisms.
Which oranisms share more characteristics the member of a species or the members of an order?
The members of a species share more characteristics with each other than members of an order. Members of a species are more closely related and share specific traits due to common ancestry, while members of an order share broader characteristics that group them together taxonomically.
What are structures that have different functions in different species but develop from the same embryonic tissue?
Homologous structures are anatomical structures that share a common evolutionary origin, but may have different functions in different species. These structures develop from the same embryonic tissue and demonstrate evolutionary relationships between species. An example is the forelimbs of vertebrates, which have different functions such as wings in birds, flippers in whales, and arms in humans.
How can you tell that organisms ate members of the same species?
Organisms of the same species will share common traits.
How can we determine if two species are closely related based on the criteria that they share a common ancestor and exhibit similar genetic and morphological characteristics?
Two species can be determined to be closely related if they share a common ancestor and show similarities in their genetic makeup and physical characteristics. By comparing their DNA sequences and physical traits, scientists can assess the degree of relatedness between the two species.
What is a group of related species are in the same?
A group of closely related species would share the same genus.
What can you infer about alligators and birds?
Alligators and birds are related and share an ancestor with these traits.
