Six Kingdoms

Question 1

Prokaryotes (single-celled, no nucleus, DNA in a nucleoid).

Thrive in extreme environments (sulfuric lakes, hydrothermal vents, high salt, high heat).

Answer 1

Kingdom Archaea (Archaebacteria)

Question 2

Thermophiles – heat-loving (e.g., Pyrolobus fumarii).

Halophiles – salt-loving (e.g., Halobacterium salinarum).

Methanogens – produce methane (e.g., Methanobrevibacter smithii).

Answer 2

Kingdom Archaea (Archaebacteria)

Question 3

Type: Prokaryotes.

Found almost everywhere; can be beneficial or harmful.

Good examples: Lactobacillus (used in probiotic drinks like Yakult).

Harmful examples: Escherichia coli (E. coli – some strains cause illness), Streptococcus pneumoniae.

Answer 3

Kingdom Eubacteria

Question 4

Type: Eukaryotes (have a true nucleus).

Mostly unicellular; some multicellular.

Thrive in moist environments (e.g., swamps).

Answer 4

Kingdom Protista

Question 5

Animal-like protists: Amoeba, Paramecium.

Plant-like protists: Euglena, Algae.

Fungus-like protists: Slime molds, Water molds.

Answer 5

Kingdom Protista

Question 6

Type: Eukaryotes.

Includes mushrooms, molds, and mildews.

Some edible (Agaricus bisporus – button mushroom); some poisonous (Amanita phalloides – death cap).

Answer 6

. Kingdom Fungi

Question 7

Type: Eukaryotes.

Multicellular, photosynthetic organisms.

Includes mosses, ferns, flowering plants, trees.

Answer 7

Kingdom Plantae

Question 8

Type: Eukaryotes.

Multicellular, heterotrophic organisms (cannot make their own food).

Includes invertebrates (insects, worms) and vertebrates (fish, birds, mammals).

Humans belong here (Homo sapiens).

Answer 8

Kingdom Animalia