I believe the answer to this question is (D) habitat fragment. Habitat fragmentation is the process in which the loss of habitat causes a division in a larger habitat, resulting in smaller areas that are isolated from each other. In this the tigers are separated from other inhabitable nearby areas.
A I don’t really think it’s wrong but if it is I’m sorry
Answer: Freshwater biomes have water that contains little or no salt. They include standing and running freshwater biomes. Standing freshwater biomes include ponds and lakes. Running freshwater biomes include streams and rivers
A. Size, because it would determine if the molecule can fit though the pores.