It a rock form from extrusive rock such as the follow of lava
Mountain lions/highest trophic levels receives less energy as energy is lost at each level/mountain lions are larger than most animals and require (smaller) individuals for food.
Pythons are affecting everglades very negatively they are causing chaos in the food pyramid attacking all levels and not having predators prey on them pythons have become a huge problem that must be dealt with quickly because their affects are being felt quickly and very largely.
C. transporting nutrients to cells
I don’t think there is a limit in science because we didn’t discover even half of the ocean.