Once retinal has absorbed a photon which initiates effects that create nerve impulses, the impulses get carried to the brain, which then processes the impulses along with other signals, ultimately allowing the eyes to see.
<span>In table or Excel, it's merging or combining.
In biology, cells generally don't combine, they split (mother cells splits into two daughter cells)</span>
Answer: The fertilized ovum, now called a zygote, is ready for the first mitotic cell division.