Mientras más superficial es un fósil, es más antiguo?

According to this food web which of the following would be considered primary consumers

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

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?