Which of the following represents the longest time frame?
A) period
B) epoch
C) era
D) 1,000 years
Correct Answer:
Verified
Q13: During the Silurian, the oxygen gas concentration
Q14: The explosion of early marine arthropods can
Q15: Some groups of dinosaurs are known to
Q16: The first terrestrial animals were:
A) amphibians.
B) ancestors
Q17: What adaptations allowed reptiles to inhabit much
Q19: During which period did the vertebrates begin
Q20: The first cells that evolved on Earth
Q21: A geologist used radiocarbon dating to date
Q22: The Cambrian explosion:
A) decreased the amount of
Q23: Because of continental drift, you are likely
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents