What are 3 adaptations that frogs have that make them amphilbians

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided

Can someone i have no idea of how to do this.

Which of these is a provisioning service people get from the ocean