Agree (for most animals), and I agree with the sliding scale.
>So are plants. So even are mountains and oceans and rivers.
Strongly disagree. Any duties we have towards plants or rivers is due to the plant's utility to some being of moral worth. No one should be charged of "plant abuse."
The sliding scale works for animals, as different animals have different capacities for the emotional states mentioned in my previous comment. Plants, mountains, and AGI don't have the biochemical processes that give rise to "feelings." In my view, having feelings is necessary for having moral worth.
"Intelligence" and being "organic" are not only insufficient, they aren't even necessary for moral consideration. In my view they are characteristics wholly divorced from the concept of moral worth.