Amoebas
feed using pseudopods
chert
rocky remains of radiolara
limestone
remains of foraminifera
methanogen
releases methane gas
nucleoid
region concentrated with DNA
retrovirus
has RNA genome and a protein coat
plasmid
circle of nonchromosomal DNA
extreme halophile
salt lover
peptidoglycan
protein component of bacteria cell walls
penicillin
halts cell wall formation in bacteria