Classifying Beads Activity

Assessing Prior Knowledge:

1. What is the scientific name for humans?

2. What do you think are the common names for Felis catus and Canis familiaris?

3. In each case, what does the first of the two names mean?

4. What do the two names together refer to?

5. Which group, genus or species, is more inclusive?

Finding Order in Diversity

Objectives:

9.0 Differentiate between the previous five-kingdom and current six-kingdom classification systems.

9.1 Sequencing taxa from most inclusive to least inclusive in the classification of living things

9.2 Identifying organisms using a dichotomous key

9.3 Identifying ways in which organisms from the Monera, Protista, and Fungi kingdoms are beneficial and harmful

Examples: beneficial -decomposers,�harmful -diseases �9.4 Justifying the grouping of viruses in a category separate from living things

9.5 Writing scientific names accurately by using binomial nomenclature

Taxonomy:

Def: classifying organisms and assigning each organism a universally accepted name.

Organisms are grouped according to biological significance, from more inclusive groups to more specific grouping.

Early efforts were done differently by different scientists.

Binomial nomenclature: two-word naming system (EX: Homo sapiens)

Carolus Linnaeus

A hierarchical system of classification including seven layers, called taxon/taxa (largest to smallest groups):

1. Kingdom – Animalia and Plantae

2. Phylum – EX: Chordata

3. Class – Mammalia, Aves, Reptilia, etc.

4. Order – EX: Carnivora (includes Families Ursidae, Canidae, Felidae, and others)

5. Family – EX: Ursidae includes various bears, from grizzlies to pandas

6. Genus – EX: Ursus a group of closely related bears

7. Species – EX: Ursus arctos is the grizzly bear