Ecology Crossword

Study of interactions of living organisms with one another and with their physical environment
place where a particular population of a species lives
the many different species that live together in a habitat
a community and all of the physical aspects of its habitat (soil, air, water, weather
number of species living within an ecosystem
Organisms that make their own food, producers
Organisms that consume producers for food, consumers
organisms that first capture energy and that make their own food (plants)
the path of energy through the trophic levels of an ecosystem
second trophic level, animals that eat plants or other primary producer
third trophic level, animals that eat herbivores
the dry weight of tissue and other organic matter found in a specific ecosystem
two or more species live together in a close, long-term association
major biological community that occurs over a large area of land
one organism feeds on and usually lives on or in another, does not usually kill the host (ticks)
one species benefits and the other is neither harmed nor helped
a symbiotic relationship in which both species benefit (ants and aphids)
an organism that is not native to an area, but is brought there intentionally or unintentionally by humans
the first organisms to live in a new habitat; usually small, fast growing plants
regular progression of species replacement