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