Final answer:
Typical bacteria such as Bacillus or Streptococcus belong to the domain Bacteria. Bacteria are prokaryotic cells without a nucleus, and their cell walls contain the polysaccharide peptidoglycan.
Step-by-step explanation:
Typical bacteria such as Bacillus or Streptococcus belong to the domain Bacteria. Bacteria are the most diverse and abundant group of organisms on Earth, found in various environments such as the ocean, soil, and intestines of animals. They are prokaryotic cells without a nucleus, and their cell walls contain the polysaccharide peptidoglycan.