Community Ecology Crossword Puzzle

QUESTIONS LIST: invasive species : organisms that become established outside of their native range, mutualism : symbiosis where both species benefit, competition : two or more species that fight for a resource, secondary : this type of succession begins in an existing community which has been cleared by some disturbance leaving the soil intact, symbiosis : individuals of two or more species live in direct and intimate contact with one another, diversity : the level variety of different kinds of organisms that make up the community, herbivore : an organism that eats a part of a plant or algae, vector : an intermediate species that transfers zoonotic pathogens, niche : the sum of a species' use of the biotic and abiotic resources, community : a group of populations of different species living close enough to interact, keystone : species that exert strong control on community structure by their niches, food chain : the diagram or idea that shows the transfer of food energy up the trophic levels, facilitation : one species has a positive effect on the survival and reproduction of another species without the intimate association of a symbiosis, cryptic coloration : a passive defense, camouflage against an organism's environment, pathogens : disease-causing microorganisms, viruses, viroids, or prions, parasitism : feeding off or harming another organism to survive, biomass : the total mass of all individuals in a population, primary : this type of succession begins in a virtually lifeless area where soil has not yet formed, predation : a predator kills and eats a prey.