After the food has been chewed and lubricated , it is pushed by the tounge into the

What is psychological dimensions? (meaning)

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.

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