Page(s) 128-1305.3 How do people adapt to environmental extremes and other circumstances?Human populations that engage in activities that stress the skeleton (e. g., walking, lifting, carrying) have bones with optimum density

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

bacterium is not correct