5- Q1 Vocab Review Crossword

The cycling of chemical elements through the living and non living parts of an ecosystem
the process that allows green plants to make sugars from water, carbon dioxide, and sunlight and which releases oxygen into the atmosphere
the process in cells by which oxygen and glucose are used to produce energy and carbon dioxide
a source of energy formed from dead plants and animals
the conversion of nitrogen in the atmosphere to a form that can be used by plants
a swelling on a plant root that contains nitrogen-fixing bacteria
the process that releases nitrogen from soil back into the atmosphere
the brown smog produced when air pollutants react with sunlight
a pollutant released into the atmosphere
the precipitation that is more acidic than normal rainwater
the stages that an organism passes through from egg or spore to the reproducing adult
one complete life cycle
the set of instructions within a cell that controls an organism’s characteristics and life processes
consisting of only one cell
a decomposer that usually reproduces through spores
the protective outer covering of the seed
the nutrient-rich structure in a seed