benthos		The ____ zone is between 23.5 N and 23.5 S latitude
parasitism		another name for the Boreal Forest
commensalism		organisms that live in the pitch black part of ocean
habitat		The place where any organism lives
weather		Living things in an ecosystem are called ____ factors
polar		free-floating or weakly swimming organisms
canopy		A symbiotic relationship when both species benefit from the relationship
biotic		Anything that is essential for life
permafrost		a climate in a small area that differs from the climate around it
microclimate		day-to-day atmospheric changes
abiotic		A symbiotic relationship when one species is helped and the other is neither helped nor harmed
costal		another name for the small plantlife in a rainforest
humus		the atmospheric gases that keep the Earth warm are _____ gases
climate		permanently frozen soil
tropical		Non-living things in an ecosystem are called ____ factors
taiga		trees that have thin leaves shaped like needles are ____
coniferous		the _____ zone is the part of the ocean that producers can grow
resource		The ____ zones have seasons and the angle of the sun changes throughout the year.
understory		cold areas where the sun shines at a low angle are ___ zones.
photic		A symbiotic relationship when one species is helped and the other is harmed
temperate		the _____ zone is the part of the ocean that is permanently dark
mutualism		year-after-year atmospheric changes
greenhouse		decaying organic matter that fertilizes soil
aphotic		the top layer of a rainforest
plankton		the _____ ocean extends from the low-tide mark to the outer edge of the continental shelf