True/False
Molecular features that distinguish major groups of Bacteria evolved billions of years ago. The DNA sequences continued to change within each group, potentially masking inherited sequence similarities from a common ancestor that otherwise would have defined the group.
Correct Answer:

Verified
Correct Answer:
Verified
Q21: Why are genes associated with nitrogen fixation
Q22: Humans provide ecological niches for bacterial populations.
Q23: What can scientists study to gain a
Q24: Fermentation yields an amount of energy equivalent
Q25: Given its prevalence in the intestines of
Q27: Archaea and Bacteria are involved in which
Q28: Given the features found individually in Archaea,
Q29: A researcher is culturing several different strains
Q30: An organism that oxidizes H<sub>2</sub>S to gain
Q31: Streptomycetes are gram-positive bacteria that are capable