i need help on this biology question?

[Tanny]

2. On a secret island there is a very simple ecosystem. There is one species of leafy tasty plants-Mediterranean cabbage (Chlorophyllia mediterraneca), two species of herbivores- a small horse-type creature (Hoofus runnous) and a variety of rabbit (Munchus hideata). There is also a medium-sized Przhevalsky bars carnivore from the feline family (Bicatia rapida) which easily eats wither the horses or the rabbits. Using satellite we have measured that the total biomass of cabbage on the island is 350,000 units. Please estimate the amount of biomass that we can expect to encounter in the horses and rabbits, and also in the meidum carnivore cat population (7 points). What would happen to the size of the popultaion of Bicata rapida if the rabbit population dropped one year by 50%? What would happen to the overall biomass of the cabbage in this case? (6 points). Imagine a new carnivore came on the island, a large wolf-type creature that can easily have the horse for breakfast, rabbits for lunch, and a cat for dinner (Caninus horriblis). Each individual has an average biomass of 1000 units. After a certain period of time, what would the ecosystem on the island look like, and what would be the biomass at each level. Why? (hint: think about evolution as well) (7 points).(can you explain the steps how to do this ill give you 10 points