Yet not every life insurance provider allows for more complex types of life policy ownership. (term-life-online.com)
In fact, viruses may be responsible for significant episodes of evolutionary change, especially in more complex types of organisms. (scientificamerican.com)
The triangular part of the theory comes from the fact that you can combine any two of these components to form more complex types of love — each combination forming a different side of a triangle. (elitesingles.co.nz)