Answer:
Invasive species are among the leading threats to native wildlife. Approximately 42 percent of threatened or endangered species are at risk due to invasive species.
Mullerian mimicry. Unpalatable means not tasty. If an animal (fly) is copying a toxic or unpalatable animal, it must be for survival. If predators know that one animal is unpalatable, the predator would not eat a fly that looks similar to that unpalatable animal.
D. The Vacuole is the correct answer!
I believe its the first one