The correct answer is option (C) Gray rabbits would be eliminated by predators.
Camouflage is an adaptation by organisms allowing them to blend with the environment. This helps them in surviving or escaping from their predators. It can be throught coloration or developing a particular pattern or mimicry.
The example given above is a type of camouflage through concealing coloration. Concealing coloration includes having a fixed camouflage and changing the camouflage depending on the environment. Grey rabbits cannot exhibit camouflage as the backgroud is dark rocks and light stones. As a result, these rabbits are clearly visible to the predators and get elimiated by them.
It's C, the catalyst remains unchanged through a reaction.
Answer:An ultra-marathon can also be defined as a running competition ... World records in female elite and age group athletes in distance-limited races, from ... as skeletal muscle mass, body fat and running training were examined in ... for a long time, and do not make any tempo changes