What is the age range between sensor, preoperational ,concrete , operational and formal operations of learning

And the 1 points are for this 20 if i get all 3 of them correctly i will give you brainliest and if you only get all 3 i will give you brainliest including a and the rating will be 5 and if you get those i will give you 20 points

Foods that contain all nine essential amino acids include

The is the innermost layer of the eyeball. a. iris b. choroid c. lens d. retina