Finishing Taxonomy

Domain

Kingdom

Phylum

(sub-phylum)

Class

Order

Family

Genus

Species

The Phylogenetic Tree

Do Kangaroos Prefer Chocolate Or Fruit Generally Speaking?

The 3 Domains

Prokaryotic

Unicellular

Some of the first life forms on Earth

Mostly found in 3 shapes – spheres, rods and spirals

Contains a cell wall (amino acids)

Ribosomes (70S sedimentation rate)

Eg. Gut flora, syphallis, Lactococcus

Bacteria

Prokaryotic

Unicellular

More closely related to Eukarya

Live in some of the most extreme conditions on Earth

Cell wall (proteins – different from bacteria)

Ribosomes (16S sedimentation rate)

Eg. Help in element cycling, mutualism with animals

Archae

EukaryoticUnicellular or MulticellularMost complex life formsCell walls (chitin or cellulose)Ribosomes (80S sedimentation rate)Eg. Amoebas, grasses, mushrooms,

elephants

Eukarya

Unicellular or multicellular

Contains a membrane bound nucleus and mitochondria

Organelles!

Eukaryotes

Unicellular

Does not contain a nucleus or mitochondria

Lacks membrane bound organelles (ER, golgi bodies, etc.)

Prokaryotes

Prokaryotes vs. Eukaryotes

Eukaryotic, unicellular

Autotrophic or heterotrophic

No cell wall

Eg. Slime molds, Euglena, Paramecium

There are animal-like protists as well as plant-like protists

Cause of Malaria

Kingdom Protista

Eukaryotic, multicellular

Heterotrophic (decomposers)

Cell wall made mostly of chitin

Eg. Mold, Yeast, mushrooms, Athlete’s foot, Penecillium

Made up of a mass of small filaments (hypae)

“eat” by secreting digestive enzymes

Kingdom Fungi

Eukaryotic, multicellular

Autotrophic

Cell wall of cellulose

Eg. Green algae, moss, ferns, flowering plants, trees

Contain chloroplasts

Kingdom Plantae

Eukaryotic, multicellularAutotrophicNo cell wallsEg. termites, seahorses, snakes, goats, gorillas

Kingdom Animalia

Which Kingdom does it belong in?

Duck – Billed Platypus

Which Kingdom does it belong in?

Duck – Billed Platypus

Animalia

Bread Mold

Bread Mold

Fungi

Volvox

Volvox

Protista

Green Moss

Green Moss

Plantae

Intro to Ecology

On a blank piece of paper create a word web of all terms involved with ecosystems

What is an Ecosystem?

Abiotic and biotic features of a given area

Eg. temperature levels, rainfall, soil types, animals, plants

All organisms in an ecosystem referred to as a community

Changes in ecosystem over time = ecological succession

Ecosystem

Mount St. Helen’s Case Study