what is homeologous organs...
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A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor. In other words, it's when very different animals have bones that appear very similar in form or function and seem to be related
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A homophone is a word that sounds the same as another but has a different meaning. If a group is homogenous, all of its members are uniform or consistent. A homosexual is a person sexually attracted to a member of the same sex. Noticing a pattern? Words with the prefix 'homo' all have the idea of sameness in their meaning. We will be continuing with this etymology as we discuss the various definitions of 'homologous' that are found in biology.
The term homologous comes from the Greek 'homos' meaning same and 'logos' meaning relation. So, literally, it means having the same relation. To make that a little clearer, we can say it means having a similar relative position, structure, function or origin. However, that definition is still somewhat broad and ambiguous. The reason for this is because the term 'homologous' is used in several different fashions in biology. The individual definitions are more specific, but they are all derived from the idea of 'having the same relation.' In this lesson, we will discuss homologous structures, homologous chromosomes and homologous organs in males and females.
Homologous Structures
A homologous structure is an organ, system, or body part that shares a common ancestry in multiple organisms. This definition is found in evolutionary biology and uses the meaning of having a similar structure or origin.
The term homologous comes from the Greek 'homos' meaning same and 'logos' meaning relation. So, literally, it means having the same relation. To make that a little clearer, we can say it means having a similar relative position, structure, function or origin. However, that definition is still somewhat broad and ambiguous. The reason for this is because the term 'homologous' is used in several different fashions in biology. The individual definitions are more specific, but they are all derived from the idea of 'having the same relation.' In this lesson, we will discuss homologous structures, homologous chromosomes and homologous organs in males and females.
Homologous Structures
A homologous structure is an organ, system, or body part that shares a common ancestry in multiple organisms. This definition is found in evolutionary biology and uses the meaning of having a similar structure or origin.
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