The major advantages are the diversity of knowledge, ideas and tools contributed by team members, and the camaraderie among members. A characteristic commonly seen in high-performance teams is cohesiveness, a measure of the attraction of the group to its members (and the resistance to leaving it).
Another important difference is that vitamin D2 has a shorter shelf life compared to vitamin D3. This decreases the potency of the vitamin if it is used as a vitamin supplement. Some researchers however feel that their efficacy is the same.
They both have advantages in different conditions: When exposed to UV radiation, humans produce Vitamin D, which is esential for our survival- but overexpose leads to skin cancer. White skin is far better at producing vitamin D than black skin. But black skin is far more resistant to skin cancer. As you can see, we have a tradeoff here.