Biology Domains and Kingdoms Quiz

Domains

• Taxonomic category above the kingdom level, consisting of three domains: Archaea, Bacteria, Eukarya.

Archaea

• Unicellular organisms that thrive in extreme environments such as volcanoes, Antarctica, and the deep ocean.
• Considered one of the three domains, closely related to Earth's earliest cells.
• Distinguished from Bacteria, as Archaea can survive in extreme conditions.

Bacteria

• Unicellular organisms that live in normal environments.
• Classified in the domain of Bacteria, known for not surviving in extreme conditions.

Eukarya

• Can be unicellular or multicellular and inhabit normal environments.
• Composed of eukaryotic cells, which are larger and more complex than prokaryotic cells and contain a nucleus.
• Includes several kingdoms: Fungi, Plantae, Animalia, and Protista.

Kingdom Fungi

• Decomposers that obtain nutrients from decaying organic materials.
• Fungi are eukaryotic organisms that can be multicellular (like mushrooms) or unicellular (like yeasts).
• Cannot move from place to place.

Kingdom Plantae

• Consists of organisms known as plants, which are producers.
• Capable of photosynthesis, allowing them to make their own food.

Kingdom Animalia

• Comprised of consumers that eat food for energy.
• Members are known as animals and are defined as eukaryotic organisms.

Kingdom Protista

• Includes a diverse group of eukaryotes that can be either unicellular or multicellular.
• Protists do not fit neatly into the other kingdoms and exhibit significant variability.

Additional Information

• Kingdom Plantae is the only kingdom that contains organisms capable of producing their own food.
• Domain Eukarya encompasses organisms including humans, cats, and birds, all of which are classified as eukaryotes.