Modern invertebrates first appear in the fossil record during the
A) cyanobacteria.
B) Silurian period.
C) Devonian period.
D) Cambrian period.
E) Precambrian era.
Correct Answer:
Verified
Q32: The earliest photosynthetic organisms
A) probably used water
Q33: An anaerobic prokaryote engulfs a prokaryote capable
Q34: If early Earthʹs atmosphere contained little or
Q35: The earliest fossil organisms resemble modern
A) prokaryotes.
B)
Q36: To survive successfully on land, plants needed
Q38: To be classified as a eukaryote, an
Q39: The first multicellular eukaryotic fossils were
A) cyanobacteria.
B)
Q40: Exoskeletons provided an evolutionary advantage to organisms
Q41: The modern-day group of vertebrates that bridges
Q42: The exoskeleton of early marine arthropods can
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