1. The problem asks: What will most likely happen when the population of rabbits increases rapidly and food becomes scarce? 2. This is a biology/ecology problem related to population dynamics and carrying capacity. 3. Important concept: When food becomes scarce, the population cannot be sustained at high levels, leading to a population crash due to starvation. 4. The options are: - Adapt instantly to eat new food (unlikely to happen instantly) - Population crash due to starvation (most likely) - Carrying capacity increase (carrying capacity is limited by resources, so it won't increase immediately) - Rabbits stop reproducing permanently (unlikely; reproduction may slow but not stop permanently) 5. Therefore, the most likely outcome is that their population will crash due to starvation. Final answer: Their population will crash due to starvation