Multiple Choice
Platyhelminthes were the first organisms to have:
A) fully developed brain.
B) notochord.
C) central nervous system.
D) eyes
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q3: What phylum contains sea jellies?<br>A) Porifera<br>B) Cnidaria<br>C)
Q4: Schooling behavior makes normally small fish appear
Q5: The first fish evolved about 50 million
Q6: What would be one thing that humans
Q7: Photosynthetic autotrophs changed the composition of the
Q9: What is a relatively large classification for
Q10: What percentage of all living and fossil
Q11: The symmetry in worms represents the transition
Q12: What characteristics have made arthropods the most
Q13: What comprises an arthropod's exoskeleton?<br>A) Keratin<br>B) Spicules<br>C)