Which are uses of lasers? Check all that apply.

scanning a bar code on a price tag for a shirt
creating a magnified image of the moon
cutting an iron bar into two pieces
reshaping a cornea to improve vision
making a leaf appear larger so its veins are visible

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

because the light is a great source of energy for the plants to survive. (i hope this )

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .