Question

what is narrowly utilitarian and broadly utilitarian?

Answer 1

Narrowly utilitarian refers to those parts of biodiversity or those plants & animals from which human derive benefits like cereals,medicines e.t.c
Broadly utilitarian refers to the broad & general uses of biodiversity like oxygen,pollination & aesthetic value which is not limited to a particular species.

Answer 2

Human derive countless direct economic benefits from nature such as food , firewood, construction materials e.t.c