DOMAINS AND KINGDOMS

SCIENCE 7TH GRADE

Domain

biggest and broadest level of classification

Kingdom

Archaebacteria, Bacteria, Protista, Fungi, Plantae, Animalia

Bacteria

kingdom of unicellular prokaryotes that live in normal places; examples are Salmonella, E. coli, Staphylococcus, Streptococcus

Archaebacteria

kingdom of unicellular prokaryotes that live in extreme places

Protista

Kingdom of "leftovers"…all are eukaryotes. Most are unicellular and live in moist places.

Plantae

Kingdom that includes eukaryotes that are multicellular autotrophs

Fungi

Kingdom of eukaryotes that are mostly multicellular heterotrophs (decomposers)

Animalia

Kingdom of eukaryotes which are all multicellular heterotrophs. Only kingdom where all organisms are able to move.

prokaryote

cells that lack a nucleus and membrane bound organelles

eukaryote

cells that have a nucleus and membrane bound organelles

extremophiles

organisms that live in environments that support very little life due to extreme conditions of temperature (heat or cold), salinity, chemical composition, etc.

photosynthesis

process by which sunlight, water, and carbon dioxide are used to produce sugar and oxygen

autotroph

organisms that make their own food via photosynthesis

heterotroph

organisms that need to eat other things to obtain energy

decomposer

an organism that breaks down other dead organisms, and is critical in returning nutrients to the soil