Evolution and Natural Selection
Across
- 4. cycle illustrated in the host cell makes many copies of the viral RNA or DNA
- 8. sometimes called eubacteria are prokaryotic organisms that belong to domain bacteria
- 10. cycle also illustrated in the viral DNA inserts or integrates
- 11. vacuoles collect the excess water from the cytoplasm and expel it from the cell
- 12. cause infection or disease is called a proteinaceous infectious particle
- 13. in which two prokaryotes attach to each other and exchange genetic information
- 15. layer of polysaccharides around the cell wall forming
- 17. singular pilus are submicroscopic hairlike structures that are made of protein
- 18. and has a complex replication cycle
- 20. shown in figure 1 is an example of an animal like protist because it is a heterotroph
Down
- 1. which are elongated cylindrical bodies that can discharge a spinelike structure.
- 2. is enclosed by a layer of membrane
- 3. is a hard, porous covering similar to a shell which surrounds the cell membrane
- 5. outer layer of all viruses is made of proteins
- 6. are microscopic protozoans that cause disease in insects.
- 7. fission is the division of a cell into two genetically identical cells.
- 9. is a temporary extension of cytoplasm
- 14. genes are found on a large circular chromosome in an area of the cell
- 16. is nonliving strand of genetic material within a protein coat
- 19. harsh some types of bacteria produce a structure