MRNA delivers the instruction of how to make protein in chucks called​

codons.

Explanation:

Every three nucleotides codes for an amino acid, these frames are called codons.

the answer is 1. photosynthesis. glad to

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.