What Is the Leading Scientific Theory on How the First

Q7: Viruses that infect bacteria are called _.<br>A)

Q23: Medicine that prevents viral infections is a(n)_.<br>A)antibody<br>B)antibiotic<br>C)vaccine<br>D)prion

Q24: There are more helpful types of bacteria

Q25: When did the first eukaryotic cell form?<br>A)About

Q26: Which are the smallest,least complex cell types?<br>A)Animal

Q30: What might be the advantage to a

Q31: The origin of the first living organisms

Q32: Which structure is not part of the

Q33: Some bacteria have a spherical shape,called _.<br>A)coccus<br>B)bacillus<br>C)spirillum<br>D)spheroid

Q40: Describe all the possible forms of nucleic