Biology 2 Crossword Puzzle

1. organisms whose cells lack a nucleus and other organelles
3. curved-shaped bacteria which can range from a gently curved shape to a corkscrew spiral
7. a group of microorganisms considered to be an ancient form of life that evolved separately from the bacteria and blue-green algae, and they are sometimes classified as a kingdom
10. A type of virus that has RNA instead of DNA as its genetic material
13. an organism that can produce its own food using light, water, carbon dioxide, or other chemicals
15. the firm nonliving layer that encloses and supports the cells of most plants, bacteria, fungi, and algae
17. an organism causing disease to its host
19. an organism that requires oxygen to grow
21. A drug used to treat infections caused by bacteria and other microorganisms
22. a rigid envelope surrounding the cytoplasmic membrane of most bacterial species

2. live only in the absence of oxygen
4. A preparation that is used to stimulate the body's immune response against diseases
5. rod-shaped, endospore-forming aerobic or facultatively anaerobic, Gram-positive bacteria
6. a spherical-shaped bacterium
8. responsible for recognizing and puncturing the bacterial host and transferring the viral genome into the host during infection
9. the disintegration of a cell by disruption of its plasma membrane.
11. a process that destroys or eliminates all forms of microbial life and is carried out in health-care facilities by physical or chemical methods
12. includes organisms that live in a variety of environments, including; in fresh water and salt water, on land, and in the human body
14. an organism that eats other plants or animals for energy and nutrients
16. organism that breaks down dead organic material
18. the protein shell of a virus particle surrounding its nucleic acid
20. a method by which a virus can replicate its DNA using a host cell