Eyes on the skin. In the teamâs first experiment, the scientists were looking to see whether UV light instigated a calcium signaling response. They found nothing. But guessing that the skin might sense light like the eyes do, they added retinal, a co-factor of opsin receptors including rhodopsin.
Economy shipping takes 1 to 10 business days within the United States and 11 to 20 business days for international. Exact time depends on how far the package must travel. Standard international shipping takes 5 to 10 days.
AVOID Economy shipping through USPS. ITems often take 14 days or more to get to buyer. Buyer is often flaming made that it took so long. IN come cases, the item is dropped off at UPS or FEDEX, they process the item, then cross ship it to USPS (POST OFFICE).