The Kingdoms and Dichotomous Keys Objectives 1 State
The Kingdoms and Dichotomous Keys Objectives: 1. State the six kingdoms that all living things are divided into. 2. Describe the general characteristics of each kingdom. 3. Describe what a dichotomous key is and demonstrate how to use it to identify a given organism.
The Kingdoms A Very Brief Overview. .
�As we go through the six-kingdoms fill in the table in your notes Kingdom General Characteristics Cell Wall Representative Organisms
Kingdom Animalia
Kingdom Animalia �General Characteristics: �Eukaryotic (true nucleus) �Multicellular �Heterotrophic �Reproduce sexually (some able to reproduce asexually as well) �Terrestrial and aquatic habitats
Kingdom Animalia �Cell Wall: � absent �Representative Organisms: �Sponges �Sea anemones �Worms �lions
Kingdom Plantae
Kingdom Plantae �General Characteristics: �Eukaryotic (true nucleus) �Multicellular �Autotrophic �Reproduce sexually and asexually �Most are terrestrial
Kingdom Plantae �Cell Wall: � Present � Contains cellulose �Representative Organisms: �Mosses �Ferns �Pine trees �Maple trees �tulips
Kingdom Fungi
Kingdom Fungi �General Characteristics: �Eukaryotic (true nucleus) �Multicellular �Heterotrophic �Reproduce sexually and asexually �Most are terrestrial
Kingdom Fungi �Cell Wall: � Present � Contains chitin �Representative Organisms: �Mushrooms �Yeast �Bread mold
Kingdom Protista
Kingdom Protista �General Characteristics: �Eukaryotic (true nucleus) �unicellular �Heterotrophic or autotrophic, or both �Reproduce sexually and asexually �Live in aquatic or very moist habitats
Kingdom Protista �Cell Wall: � absent �Representative Organisms: �Algae �Amoeba �paramecium
Kingdom Eubacteria
Kingdom Eubacteria �General Characteristics: �Prokaryotic (no nucleus) �Autotrophs or heterotrophs �Only reproduce asexually �Live nearly everywhere �Can cause disease (but many are beneficial)
Kingdom Eubacteria �Cell Wall: �Present �Contains peptidoglycan �Representative Organisms: �Treponema pallidum - causes Syphilis �Streptococcus pyogenes – causes strept throat
Kingdom Archaebacteria
Kingdom Archaebacteria �General Characteristics: �Prokaryotic �Heterotrophs or autotrophs �Live in extreme environments (e. g. Dead Sea, hot springs, thermal vents, animal guts) �Reproduce asexually �Do not cause disease
Kingdom Archaebacteria �Cell Wall: �Present �Does not contain peptidoglycan �Representative Organisms: �Methanogens �Extreme thermophiles �Extreme halophiles
Identifying Organisms – Dichotomous Keys �Dichotomous Key �a tool used to identify an organism �it is a series of yes/no questions �each question is a choice between two characteristics
Dichotomous Keys Spider key format: Traditional Format: 1 a. Internal skeleton ………… go to 2 1 b. No internal skeleton ………… go to 3 2 a. Pouch present ………… kangaroo 2 b. Pouch absent ………… cow 3 a. Six legs ………… bee 3 b. Not six legs ………… spider
Practice Time! �Pg 102 - Activity 2. 2: Using A Classification Key �Read the introduction �Read the procedure �Identify each protist (Fig 1 -8) by name �Complete the Analysis Questions (b, c)
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