An estuary is often a stopover location for millions of migrating shorebirds that need to stop and fuel up on the invertebrates living in the mudflats.
Ecosystems include all the organisms, their physical and chemical environment. The intrinsic value of the ecosystem is self-ascribed which means that its intrinsic value is conferred by its own desire to take its lived experience as an end in itself. An estuary establishes its intrinsic value in this example showing how it is utilized in the ecosystem.
T, attitudes are generally very good predictors of behavior.
Answer:
I'm pretty sure it's a and b. Sorry if I'm wrong.