Environmental Systems Crossword Puzzle

QUESTIONS LIST: mutualism : two populations that benefit from one another and often depend on each other for survival, producer : creates its own food directly from solar energy through photosynthesis, commensalism : one population benefits from another population without effecting it, primary : _ succession is a building process that occurs when there is no preceding organisms or soil, ecosystem : all the biotic and abiotic things, conditions, and interactions in a defined area, population : the number of organisms of the same species that live in a defined area and make up the breeding group, carbon : this element is exchanged in the environment through photosynthesis in plants, and respiration in animals, parasitism : one population benefits from another population, often while harming it, biomass : the total amount of biological matter in a trophic level or ecosystem, predation : one population captures and feeds on another population, abiotic : word meaning nonliving, competition : two populations that struggle against each other for the same resources in an ecosystem, secondary : _ succession is a rebuilding process that occurs after disruption to an ecosystem but leaves soil; ex. forest fire, trophiclevel : classification of organisms by feeding relationships in hierarchal order (no space between words), decomposer : breaks down the nutrients in dead organisms for its food, biotic : word meaning living, pioneer : the first organisms to rebuild in ecological succession are called the _ species, nitrogen : bacteria will fix this element into as usable form for plants to take from soil