2. Justify the conclusion that the subphylum Craniata is at least 500 million years old.
Standard detail
Depth 2Parent ID: D552DABDC5244B089A0B1DE11A481033Standard set: Zoology
Original statement
Quick facts
- Statement code
- Standard ID
- 8BF65CBD0C4248B8A6A2996A6D20EB6C
- Subject
- Science
- Grades
- 11, 12
- Ancestor IDs
- D552DABDC5244B089A0B1DE11A4810331B0BBB6A093C40D2B44080C6F74F47B9
- License
- CC BY 4.0 US