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Study Guide Questions! Review the power point also!


Variety of organisms that exist


The science of describing, classifying, and naming organisms


A group within a taxonomic system

How did Aristotle classify life on Earth 2400 years ago?

Animals classified by land, water, or air

Describe the Linnaean system of classification

System of hierarchical categories; larger range to smaller range; Form and structure

order of hierarchies

Domain-> Kingdom ->Phylum -> Class -> Order -> Family -> Genus -> Species

Explain why we use binomial nomenclature to name organisms

Intended for all countries and languages

Why is the common name not a good method?

Not all languages have the same name for a common name as they would for a universal reason

What language is the scientific name and why?

Latin, because most languages derive from this language

What are the two parts of the name in binomial nomenclature?

Genus and Species

How is binomial nomenclature written?

The Genus word is italicized.

Eukaryotic cells

Membrane-bound nucleus and organelles

Prokaryotic Cells

smaller, no nucleus or membrane bound organelles

List 5 things that scientists can use to help classify organisms

1. Similarities between fossils
2. homologous features
3. Patterns of embryonic development
4. Chromosomes
5. Macromolecules such as DNA and RNA

What homologous features do eukaryotic and prokaryotic cells share?

Control center and a cell membrane

Carl Woese's contribution to revising the tree of life

Proposes major revision of classification system, compared ribosomal RNA (rRNA) sequences and grouped according to similarity

What evidence do we have for the last universal common ancestor?

Evidence supports all organisms' inherited rRNA genes from an ancient form of life.

Describe the Theory of Endosymbiosis

two organisms living together

3 domains

1. Bacteria
2. Archaea
3. Eukarya

Six Kingdoms

1. Eubacteria
2. Archaebacteria
3. Protista
4. Fungi
5. Plantae
6. Animalia

Describe organisms that belong to Domain Bacteria/ Kingdom Eubacteria:

true bacteria

Describe organisms that belong to Domain Archaea:

Not considered to be bacteria

Describe organisms that are in kingdom Protista:

Not plants, animals or fungi, Difficult to generalize, mostly unicellular

Describe organisms that are in kingdom Fungi:

Heterotrophic: absorb nutrients, not ingest; Unicellular or multicellular

Describe organisms that are in kingdom Plantae

Multicellular plants; Photosynthesis for energy; Develop from embryos; Most live on land

Describe organisms that are in kingdom Animalia:

Multicellular; Heterotrophic; Develop from embryos; Symmetrical body organization; Able to move around environment


gets energy from others


makes its own energy

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