The first vertebrates appear in the fossil record during the
A) Cambrian Period.
B) Proterozoic Era.
C) Carboniferous Period.
D) Triassic PerioD.
E) Devonian Period.
Correct Answer:
Verified
Q34: The event called the Cambrian Explosion resulted
Q35: Q36: Stromatolites are Q37: Select the statement that correctly describes differences Q38: How did the earliest single celled microorganisms Q39: Changes that have occurred in living organisms Q40: Bartel and Szostak hypothesized that among a Q41: Although not well understood,the Cambrian Explosion most Q43: An unfortunate deer becomes stuck in quicksand Q44: Flowering plants originated during the
A)layered rocklike structures formed by cyanobacteriA.
B)the
A)Permian Period.
B)Tertiary Period.
C)Devonian
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