Podcast
Questions and Answers
What is the term for a shared recent homology that indicates a close relationship between two organisms?
What is the term for a shared recent homology that indicates a close relationship between two organisms?
- Homology
- Synapomorphy (correct)
- Analogy
- Homoplasy
What is the method of grouping organisms based on shared derived characters?
What is the method of grouping organisms based on shared derived characters?
- Phylogenetic systematics
- Taxonomy
- Cladistics (correct)
- Evolutionary biology
What is the relationship between the common ancestor of all tetrapods and the original vertebrate ancestor?
What is the relationship between the common ancestor of all tetrapods and the original vertebrate ancestor?
- The common ancestor of all tetrapods is not related to the original vertebrate ancestor
- The common ancestor of all tetrapods is a descendant of the original vertebrate ancestor (correct)
- The common ancestor of all tetrapods is the original vertebrate ancestor
- The common ancestor of all tetrapods is an ancestor of ray-finned fish
What is the primitive state for the number of digits in vertebrates?
What is the primitive state for the number of digits in vertebrates?
Which two groups are sister clades in the diagram?
Which two groups are sister clades in the diagram?
What can be inferred about the tetrapod clade and the ray-finned fish clade?
What can be inferred about the tetrapod clade and the ray-finned fish clade?
What is the relationship between the vertebrate clade and the tetrapod clade?
What is the relationship between the vertebrate clade and the tetrapod clade?
What is the meaning of 'basal' in the context of clade relationships?
What is the meaning of 'basal' in the context of clade relationships?
What is the primary reason why cold-bloodedness should not be used to define a group in a cladistic system?
What is the primary reason why cold-bloodedness should not be used to define a group in a cladistic system?
What type of diagram is used to show the relationships between organisms in cladistics?
What type of diagram is used to show the relationships between organisms in cladistics?
Why are humans not more closely related to turtles and frogs, despite sharing a homology in the number of digits?
Why are humans not more closely related to turtles and frogs, despite sharing a homology in the number of digits?
What is the term for a characteristic that is present at the base of a phylogenetic tree?
What is the term for a characteristic that is present at the base of a phylogenetic tree?
Which of the following is an example of a shared derived character?
Which of the following is an example of a shared derived character?
What is the term for a characteristic shared by members of a tree but not present in their common ancestor?
What is the term for a characteristic shared by members of a tree but not present in their common ancestor?
What type of characteristic is having four limbs in tetrapods?
What type of characteristic is having four limbs in tetrapods?
Why should mammals and birds not be grouped together based on their ability to maintain a high constant body temperature?
Why should mammals and birds not be grouped together based on their ability to maintain a high constant body temperature?
What is the term for a characteristic believed to have evolved within a tree?
What is the term for a characteristic believed to have evolved within a tree?
What is the primary function of a synapomorphy in a cladistic system?
What is the primary function of a synapomorphy in a cladistic system?
