The correct answer is: d. it contains many light-sensing columns called ommatidia
Ommatidia are units that form compound eyes of arthropods such as insects, crustaceans and millipedes (these are invertebrates) and make them very sensitive to motion. Ommatidia are composed of photoreceptor cells (visual detection) surrounded by support cells and pigment cells.
The eyes of vertebrates are more complex showing that progressive improvements in the structure of the eye occurred during the evolution.
I'm no good with science sorry
<span>Dose of the valporic acid (depakote) is 45 mg/kg/day.
The weight of the child is 66 lb (30 kg).
By multiplying child's weight with per kg dose, we found dose of valporic acid (depakote), which is 1350 mg per day.
And dividing this day dose with 3 we get per dose quantity which is 450 mg.
The syrup contains 250 mg valporic acid / 5 ml, which means 50 mg / 1 ml.
1 ml syrup contains 50 mg volporic acid, than 9 ml syrup contains 450 mg volporic acid.
The nurse will administer 9ml syrup to child.</span>
