science

3. that help stop infections caused by bacteria. They do this by killing the bacteria or by keeping them from copying themselves or reproducing.
4. segment of DNA independent of the chromosomes and capable of replication, occurring in bacteria and yeast: used in recombinant DNA procedures to transfer genetic material from one cell to another.
5. long, lashlike appendage serving as an organ of locomotion in protozoa, sperm cells, etc.
7. polymer found in the cell walls of prokaryotes that consists of polysaccharide and peptide chains in a strong molecular network.mucopeptide murein
10. fission-fission into two organisms approximately equal in size.
12. to, involving, or requiring free oxygen.

1. organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists.
2. hair or hairlike structure.
6. to, involving, or requiring an absence of free oxygen.
8. cellular organism that has no nuclear membrane, no organelles in the cytoplasm except ribosomes, and has its genetic material in the form of single continuous strands forming coils or loops, characteristic of all organisms in the kingdom Monera, as the bacteria and blue-green algae.
9. one-celled organisms, spherical, spiral, or rod-shaped and appearing singly or in chains, comprising numerous and variously classified phyla: among the inestimable number of species are those involved in fermentation, putrefaction, infectious diseases, and nitrogen fixation.
11. no gender or sexual organs.