Multiple Choice
When life first evolved, ocean temperatures were ________ and there was ________ atmospheric oxygen.
A) cooler; no
B) cooler; abundant
C) hotter; abundant
D) hotter; no
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q28: A phylogenetic event horizon is a<br>A) point
Q29: Many proteins are now thought to consist
Q30: How did Spiegelman et al.'s experiment on
Q31: Natasha Paul and Gerald Joyce's experiment sought
Q32: Which of the following is NOT a
Q34: List the properties typically associated with living
Q35: Why did the researchers conduct serial transfers
Q36: What was LUCA?<br>A) the first life-form<br>B) a
Q37: When researchers are trying to identify a
Q38: Why can we not use modern atmospheric