A hybrid individual is crossed with a purebred recessive individual for a trait

Which sentence best expresses the differing opinions of these two book reviews?

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

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic