The Evolutionary History of Biodiversity Protists The Evolutionary History of Biodiversity Concept 2: Analyzing the diversity of bacteria, archaea, protists, and fungi (Ch 26, 27, 28, 31)

But first...Try This! (from Bacteria and Archaea) What features of prokaryotes make it likely that considerable genetic variation will be added to their populations with each generation? What are the differences between the four major types of nutrition in prokaryotes. Which are only possible in prokaryotes? Identify three ways that prokaryotes have positively (mutualistically or commensally) affect your life so far today.

But first...Try This! (from Bacteria and Archaea) What features of prokaryotes make it likely that considerable genetic variation will be added to their populations with each generation? Rapid cell division with high probability of mutations Transformation Conjugation Transduction

But first...Try This! (from Bacteria and Archaea) What are the differences between the four major types of nutrition in prokaryotes. Which are only possible in prokaryotes? Photoautotrophic – like plants! Photoheterotrophic – prokaryotes only Chemoautotrophic – prokaryotes only Chemoheterotrophic – like you (and spiders...)!

But first...Try This! (from Bacteria and Archaea) Identify three ways that prokaryotes have positively (mutualistically or commensally) affect your life so far today.

Protists An appreciation of the “real kingdoms” of Protista. You must know: An appreciation of the “real kingdoms” of Protista. How chloroplasts and mitochondria evolved through endosymbiosis. Refer to Ch 28 in Campbell and media resources Acetabularia ('mermaid's wineglass‘)

Protists Eukaryotic “True” sexual reproduction (and asexual) Not plants Not animals Not fungi Not necessarily single celled (but most are) “True” sexual reproduction (and asexual) Polyphyletic (or… Paraphyletic?... There is debate!) NOT one kingdom! (and don’t let anyone tell you it is) INCREDIBLY diverse

Endosymbiosis The birth of the Eukaryote? Primary verses secondary endosymbiosis

Endosymbiosis The birth of the Eukaryote? Primary verses secondary endosymbiosis

Classification – See page E-2 at back of Campbell Three categories? Animal-like Plant-like Fungus-like Nothing-like? Five “supergroups” of the Eukaryotic domain? Excavata Chromalveolata Rhizaria Archaeplastida Unikonta

In Motion…

In Motion…

Ecological Connections Mutualistic Symbiosis Photosynthetic dinoflagellates and coral polyps Protists and termites Parasitic Symbiosis Malaria-causing protist Plasodium Photosynthetic Producers ¼ of all the world’s photosynthesis done by diatoms, dinoflagenllates, multicellular algae and other protists! Foundation of many food webs

Let’s Explore!!! Paramecium aurelia Didinium Amoeba proteus I’d like to introduce you to: Paramecium aurelia Didinium Amoeba proteus Stentor coeruleus