Evolution is a scientific theory as its ideas are supported by facts and inference
Answer:
The brackish water adaptation is clearly necessary because the aquatic snails need to live in an environment in which the river system has a higher quantity of salt than what land snails can take. I can determine that the environmental factors influenced the inherited adaptations because the second population has a higher salt concentration in their habitat compared to the initial population.
Answer:
Agricultural revolution, start of Neolithic era, maybe 12000 yrs ago
Explanation:
Rabbit. It's the only herbivore in this chain.
