Help pleaseee NOT THE LAST ONE BC IT IS Inccorect

How does natural selection change thephenotypes within a population over time?

What is the importance of having the us forest service, the bureau of land management, the us fish and wildlife service, and the national park service? to manage land resources for conservation and the development of natural resources to manage land resources for conservation and the development of urban areas to preserve historical landmarks and manage the development of urban areas to preserve historical landmarks and manage the development of rural areas

Why were the results whit just water so much different than the trials with the detergent ?