Which term includes the others? 

A)  biological diversity 
B)  ecological diversity 
C)  functional diversity 
D)  genetic diversity

Biological diversity includes all the other types of diversities, such as ecological diversity, functional diversity, and genetic diversity, as it refers to the variety of all living organisms in different ecosystems and levels of organization. Ecological diversity focuses on the variety of interactions and relationships among living organisms and their environment, whereas functional diversity relates to the diversity of ecological roles and functions that species play in a given ecosystem. Genetic diversity refers to the variety of genes and genetic variations within and among populations of a species.