Quiz 1 Flashcards
Species
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Classification
taxonomy
Carolus Linnaeus
- Swedish naturalist Carolus Linnaeus (1707-1778) made system of grouping organisms into heirarchical categories
- Used mostly morphology (form and structure)
Dichotomous Key
not necessarily science related but the method of splitting things up by characteristics
Macromolecules
Proteins, Carbohydrates, Lipids, Nucleic Acids (crucial)
Morphology/Anatomy (structures)
Morphology: physical similar characteristics
Embryology
How do babies develop similarly in the womb/egg
Fossils
Evolutionary history
3 Domains (Eukarya, Archaebacteria, Bacteria)
Screenshots
Phylogenetic tree/Phylogeny
Phylogenetic tree: a family tree that shows evolutionary relationships thought to exist among groups of organisms
Phylogeny: To classify organisms, modern taxonomists consider phylogeny, or evolutionary history, of the organism
- Most of Linnaeus’s work is still relevant today
Binomial nomenclature
- In Linnaeus’s system, the species name (also called the scientific name) of an organism has 2 parts
First part = name of the genus
Second part = species identifier
- Usually a descriptive word
- Homo sapiens → sapiens = “wise”
This system of 2-part names is binomial nomenclature
- In binomial nomenclature, genus name is capitalized
- Both names either underlined or italicized
- Because names are in Latin, they are the same throughout the world
- These names can from location, famous people, or be descriptive
Taxonomy
branch of biology that names and groups organisms according to their characteristics and evolutionary history
Reason:
Every year, thousands of new species are discovered. Biologists use the characteristics of each newly discovered species to classify it with organisms having similar characteristics. The ways we group organisms continue to change, and today these methods reflect the evolutionary history of organisms in addition to physical characteristics.
6 Kingdoms (Archaebacteria, Bacteria, Protista, Plantae, Fungi, Animalia)
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-The tree of life is diverse and complex so having a naming system is important for organization
concept
-The levels of classification include (Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species)
concept