Biology Test on Ch. 16, 17 , 18

These flashcards were made to help me study for  a biology test I have on ch.16, 17, 18.

46 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
Something composed of many thin layers of sediment pressed tightly together, resembling the layers of an onion
Stromatolite
Prokaryotes that live in the most extreme environments on earth
Archaea
Prokaryotic organisms that differ from archaea in several features of cell structure ad chemical makeup
Bacteria
Spherical bacteria that cause pnemonia
Cocci
Rod shaped bacteria
Bacilli
Spiral shaped bacteria
Spirochetes
Division in which the DNA copies and moves itself to opposite ends of the cell as the cell splits in the middle
Binary fission
Resting cells
Endospores
A photoautotrophic group of bacteria that generates oxygen as a waste product of their photosynthesis
Cyanobacteria
The use of organisms to remove pollutants from water, air, and soil
Bioremedication
Bacteria and other microorganisms that cause disease
Pathogens
In the _____ cycle, the phage that attaches to the host cell and injects it’s DNA.
Lytic
In the ___________cycle, a virus injects its genes into the host
Lysogenic
A virus that reverses the usual DNA-to-RNA flow of genetic information
Retrovirus
Deactivated varieties or small pieces of pathogens that stimulate the immune system to defend against the actual pathogen
Vaccine