Based on the information provided, when a habitat is recovering from a forest fire, the type of plant that would likely sprout first and grow fastest are weeds similar to sunflowers. Weeds are known for their fast growth rates and ability to quickly colonize disturbed areas like those after a forest fire. Sunflowers, for example, are known for their rapid growth and adaptability to harsh conditions.
If a scientist were to return to the forest two years later, she would likely find that the habitat is dominated by slow-growing hardwoods. Hardwoods, such as birch trees, typically take longer to establish and grow compared to weeds. Over time, these hardwoods would outcompete the initial fast-growing plants, leading to their dominance in the habitat.
In summary:
1. Weeds similar to sunflowers would sprout first and grow fastest after a forest fire due to their rapid growth and ability to quickly establish in disturbed areas.
2. Two years later, slow-growing hardwoods like birch trees would be expected to dominate the habitat as they gradually outcompete the initial fast-growing plants.