How Does a Cladogram Reveal Evolutionary Relationships? What is a cladogram? It is a diagram that depicts evolutionary relationships among groups. It is based on PHYLOGENY which is the study of evolutionary relationships. Sometimes a cladogram is called a phylogenetic tree (though technically there are minor differences between the two.) In the past, biologists would group organisms based solely on their physical appearance. Today, with the advances in genetics and biochemistry, biologists can look more closely at individuals to discover their pattern of evolution, and group them accordingly - this stratepy is called EVOLUTIONARY CLASSIFICATION. CLADISTICS is form of analysis that looks at features of organisms thet are considered "imnovations". or newer features that serve some kind of purpose. (Think about what the word "innovation" meams in resular language.) These characteristics appcar in later organisms but not earlier ones and are called DERIVED CHARACTERS. PARTI- Analyze the Cladogram Examine the sample cladogram, each letter on the diagram points to a derived character, or something different (or newer) than what was seen in previous groups. Match the letter to its character. Note: this cladogram was created for simplicity and understanding, it does not represent the established phylogeny for insects and their relatives. Wings 6 Legs Seemented Body 2. but not earlier ones and are called DERIVED CHARACTERS. PARTI- Analyze the Cladogram Examine the sample cladogram, each letter on the diagram points to a derived character, or something different (or newer) than what was seen in previous groups. Match the letter to its cheracter. Note: this cladogram was created for simplicity and understanding, it does not represent the established phylogeny for insects and their relatives. www.bioigycomer.com Wings 6 Legs Segmented Body Double set of wings Cerci (abdominal appendages) Crushing mouthparts Legs Curly Antennae 1. 2. 3. 4. 5. 6. 7. 8.
How Does a Cladogram Reveal Evolutionary Relationships? What is a cladogram? It is a diagram that depicts evolutionary relationships among groups. It is based on PHYLOGENY which is the study of evolutionary relationships. Sometimes a cladogram is called a phylogenetic tree (though technically there are minor differences between the two.) In the past, biologists would group organisms based solely on their physical appearance. Today, with the advances in genetics and biochemistry, biologists can look more closely at individuals to discover their pattern of evolution, and group them accordingly - this stratepy is called EVOLUTIONARY CLASSIFICATION. CLADISTICS is form of analysis that looks at features of organisms thet are considered "imnovations". or newer features that serve some kind of purpose. (Think about what the word "innovation" meams in resular language.) These characteristics appcar in later organisms but not earlier ones and are called DERIVED CHARACTERS. PARTI- Analyze the Cladogram Examine the sample cladogram, each letter on the diagram points to a derived character, or something different (or newer) than what was seen in previous groups. Match the letter to its character. Note: this cladogram was created for simplicity and understanding, it does not represent the established phylogeny for insects and their relatives. Wings 6 Legs Seemented Body 2. but not earlier ones and are called DERIVED CHARACTERS. PARTI- Analyze the Cladogram Examine the sample cladogram, each letter on the diagram points to a derived character, or something different (or newer) than what was seen in previous groups. Match the letter to its cheracter. Note: this cladogram was created for simplicity and understanding, it does not represent the established phylogeny for insects and their relatives. www.bioigycomer.com Wings 6 Legs Segmented Body Double set of wings Cerci (abdominal appendages) Crushing mouthparts Legs Curly Antennae 1. 2. 3. 4. 5. 6. 7. 8.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:How Does a Cladogram Reveal Evolutionary Relationships?
What is a cladogram? It is a diagram that depicts evolutionary relationships among groups. It is based on PHYLOGENY which is the
study of evolutionary relationships. Sometimes a cladogram is called a phylogenetic tree (though technically there are minor differences
between the two.)
In the past, biologists would group organisms based solely on their physical appearance. Today, with the advances in genetics and
biochemistry, biologists can look more closely at individuals to discover their pattern of evolution, and group them accordingly - this
stratepy is called EVOLUTIONARY CLASSIFICATION.
CLADISTICS is form of analysis that looks at features of organisms thet are considered "imnovations". or newer features that serve some
kind of purpose. (Think about what the word "innovation" meams in resular language.) These characteristics appcar in later organisms
but not earlier ones and are called DERIVED CHARACTERS.
PARTI- Analyze the Cladogram
Examine the sample cladogram, each letter on the diagram points to a derived character, or something different (or newer) than what
was seen in previous groups. Match the letter to its character. Note: this cladogram was created for simplicity and understanding, it does
not represent the established phylogeny for insects and their relatives.
Wings
6 Legs
Seemented Body
2.
Transcribed Image Text:but not earlier ones and are called DERIVED CHARACTERS.
PARTI- Analyze the Cladogram
Examine the sample cladogram, each letter on the diagram points to a derived character, or something different (or newer) than what
was seen in previous groups. Match the letter to its cheracter. Note: this cladogram was created for simplicity and understanding, it does
not represent the established phylogeny for insects and their relatives.
www.bioigycomer.com
Wings
6 Legs
Segmented Body
Double set of wings
Cerci (abdominal appendages)
Crushing mouthparts
Legs
Curly Antennae
1.
2.
3.
4.
5.
6.
7.
8.
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