These viruses – known as phages – attach to the surface of bacterial cells, inject their genetic material, and use the cells' enzymes to multiply while destroying their hosts. To defend against a phage attack, bacteria have evolved a variety of immune systems
The more you observe, the more you catch on
1) A
2) B
3) B
4) C
5) B
6) C
7) D
8) B
9) A
10) A
Like other organisms, bacteria use double-stranded DNA as their genetic material. ... Bacteria have a single circular chromosome that is located in the cytoplasm in a structure called the nucleoid. Bacteria also contain smaller circular DNA molecules called plasmids.
