6 Kingdoms Biology Flashcards

Study Notes

Archaebacteria

Kingdom of prokaryotic, single-celled organisms thriving in extreme environments.
Autotrophs, including Halophiles (salt), Thermophiles (heat), and Methanogens (methane producers).

Eubacteria

Kingdom mostly comprising free-living, prokaryotic bacteria across diverse environments.
Heterotrophs or autotrophs, examples include E. coli, Salmonella, and blue green algae.

Protista

Kingdom of eukaryotic organisms, either single-celled or simple multicellular.
Includes heterotrophs and autotrophs like slime molds and Euglena, and encompasses organisms not classified as plants, animals, or fungi.

Fungi

Kingdom of multicellular, eukaryotic organisms that decompose organic materials for nutrients.
Heterotrophs including molds, yeast, rusts, and mushrooms, functioning as important decomposers.

Plantae

Kingdom containing complex, multicellular organisms capable of photosynthesis.
Eukaryotes with cell walls made of cellulose, examples include ferns and palm trees.

Animalia

Kingdom of complex, multicellular organisms without cell walls, typically mobile with nervous systems.
All animals, such as elephants, fall under this classification as heterotrophs.

Eukaryotic Kingdoms

Animalia, Fungi, Plantae, and Protista are classified as eukaryotes.

Prokaryotic Kingdoms

Archaebacteria and Eubacteria are classified as prokaryotes.

Classification Relationships

Organisms in the same genus belong to the same family due to broader structural classification.
Classification hierarchy: Kingdom, Phylum, Class, Order, Family, Genus, Species.

Evolutionary Relationships

Classification levels indicate evolutionary links, starting with broad kingdoms and narrowing down to specific species.

Common Characteristics

All six kingdoms share the presence of cells and consist of living organisms.

Species Estimates

Scientific estimates suggest a range of 5 million to 100 million species exist on Earth, with only about 2 million identified.

Description

Test your knowledge of the six kingdoms of life with these flashcards. This quiz focuses specifically on the kingdoms Archaebacteria and Eubacteria, describing their characteristics and examples. Perfect for biology students wanting to deepen their understanding of classification.