Concepts | Questions | Media Resources |
20.1 Taxonomy
| | |
- Each known species has been given a binomial name consisting of the genus and specific epithet.
- Species are distinguished on the basis of structure and reproductive isolation. This chapter stresses reproductive isolation.
- Classification usually involves the assignment of species to a genus, family, order, class, phylum, kingdom, and domain (the largest classification category).
| - Classification of organisms is usually based on what?
Answer - Explain the binomial system of naming organisms?
Answer - What is the biological definition of species?
Answer - What are the categories of classification used today and how do they differ between plants and animals?
Answer
|
Essential Study Partner
Summaries of major points:- Taxonomy is the branch of biology concerned with identifying and naming organisms
- The binomial system
- What is a species?
- Classification categories
Art Review
Art Quizzes
|
20.2 Phylogenetic Trees
| | |
- Systematics encompasses both taxonomy (the naming of organisms) and classification (placing species in the proper categories).
- The fossil record, homology, and molecular data are used to decide the evolutionary relatedness of species.
| - What is the difference between primitive and derived characters?
Answer - What is convergent evolution?
Answer - The independent development of similar characters in related lineages is called ________________.
Answer - What is DNA hybridization and what can it be used for?
Answer
|
Essential Study Partner
Summaries of major points:- Systematics is the study of the diversity of organisms using information from cellular to population levels.
- The fossil record
- Homology
- Molecular data
Art Review
Art Quizzes
|
20.3 Systematics Today
| | |
- There are three main schools of systematics: cladistic, phenetic, and traditional systematics.
| - What is a clade?
Answer - Are cladograms and other phylogenetic trees considered to be hypotheses? Explain.
Answer
| Summaries of major points:- Cladistic systematics
- Phenetic systematics
- Traditional systematics
Art Review
Art Quizzes
|
20.4 Classification Systems
| | |
- The five-kingdom system contains these kingdoms: Monera, Protista, Fungi, and Animalia.
- The three-domain system recognizes three domains: Bacteria, Archaea, and Eukarya. The domain Eukarya contains the kingdoms Protista, Fungi, Plantae, and Animalia.
| - What are the major characteristics that were used to place organisms into a kingdom in the 5-kingdom classification system?
Answer - What was the major discovery prompting a three-domain classification system and what is contained within each domain?
Answer
|
Essential Study Partner
Summaries of major points:- Naming the kingdoms
- Three-domain system
Art Review
Art Quizzes
|