Oil and natural gas result from: 1.)the decay of plants that lived in grasslands hundreds of years ago. 2.) the burning of high-sulfur, low-grade uranium. 3.) the migration of complex carbohydrate molecules to nonporous rock formations. 4.)the decay of tiny marine organisms accumulated on the ocean floor millions of years ago.

Match the following terms and definitions. 1. species that are adapted to live in equilibrium at carrying capacity population density 2. population growth that reaches equilibrium and carrying capacity population 3. death rate mortality 4. birth rate k-selected 5. a group of interacting individuals of the same species within the same geographic area natality 6. the number of organisms living in a particular area logistic growth