In geology, a graded bed is one characterized by a systematic change in grain or clast size from one side of the bed to the other. Most commonly this takes the form of normal grading, with coarser sediments at the base, which grade upward into progressively finer onesI just learned about this in our rocks and minerals unit for science,
For one it is False
two is exhibition
I need terms to answer three
Answer:
Mutations in the HBB (beta-globin) protein causes symptoms of sickle cell disease.
