Multiple Choice
Which of the following organisms first introduced oxygen into Earth's atmosphere?
A) green algae
B) cyanobacteria
C) early protozoans
D) plants
Correct Answer:
Verified
Correct Answer:
Verified
Q40: Which of the following groups includes the
Q41: Chemoautotrophic bacteria obtain their carbon from and
Q42: A bacterium living in an underground septic
Q43: The main ingredient of oil is<br>A)algae<br>B)diatoms<br>C)bacteria<br>D)dinoflagellates
Q44: are chromalveolates that commonly are found decomposing
Q45: Plasmodial slime molds<br>A)are photoautotrophic.<br>B)are primitive fungi.<br>C)contain many
Q46: Which of the following options correctly pairs
Q47: Barry Marshall and his collaborators showed that<br>A)Helicobacter
Q48: Intestinal gas is evidence of active _
Q49: The largest group of prokaryotes is the