classifying organisms helps us see the beauty in life!, from xkcd

Classifying organisms helps us see the beauty in life!, from XKCD.com

5.5 Classification

April 27th/2012

Adapted from: Taylor, S. (2010). Populations (Presentation). Science Video Resources. [Online] Wordpress. Retrieved from http://i-biology.net/ibdpbio/classification/

5.5.1 Outline the binomial system of nomenclature.

Was Linnaeus a racist?

Carolus Linnaeus proposed 4 biological varieties or races of humans:

• Homo sapiens Eoropeus albescens ("white" people from Europe)

• Homo sapiens Africanus negreus ("black" people from Africa)

• Homo sapiens Asiaticus fucus ("dark" people from Asia)

• Homo sapiens Americanus rubescens ("red" people from the Americas)

• Kingdom: Animalia• Phylum: Chordata• Class: Mammalia• Order: Carnivora• Family: Canidae• Genus: Canis• Species: C. lupus

• Kingdom: Plantae• Phylum: Magnoliophyta• Class: Liliopsida• Order: Asparagales• Family: Orchidaceae• Subfamily: Vanilloideae• Genus: Vanilla• Species: V. planifolia

5.5.2 List seven levels in the hierarchy of taxa—kingdom, phylum, class, order, family, genus and species—using an example from two different kingdoms for each level.

PlantaeFungi Animalia

Protoctista

Prokaryotae

5.5.3 Distinguish between the following phyla of plants, using simple external recognition features: bryophyta, filicinophyta, coniferophyta and angiospermophyta.

5.5.4 Distinguish between the following phyla of animals, using simple external recognition features: porifera, cnidaria, platyhelminthes, annelida, mollusca and arthropoda.

5.5.5 Apply and design a key for a group of up to eight organisms.

So… what is a Dichotomous Key?

Is a way to classifiy organisms into groups based on characteristics that distinguish them from other organisms.

How to construct a Dichotomous Key

5.5.5Apply and design a key for a group of up to eight organisms.