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section 3 crossword

section 3 environmental science    kaitlyn grieve p.3
Across
species that have a strong or wide ranging impact on a community
linear senses of feeding relationships
somewhat predictable series of changes in a community that follows a disturbance that alters a community but doesn't deny sol life
somewhat predictible scenes of changes in a community that folliws a disturbance so severe that no vegetation or sol life remains
rank in a feeding hierarchy
One of the first species to colonize newly exposed land
the total amount of living tissue in a trophic level
diagram of feeling relationships and energy flow showing the paths by which nutrients and energy pass from organism as one consumers
an organism that relies on other organisms for energy and others.
Down
an animal that eats both plants and animals
an organism that can capture energy from the sun or from chemicals and store it
an animal thta kills and eats other plants
process by which organisms use oxygen to release the chemical energy of sugars, producing carbon dioxide and water.
Organism tha scavages the waste products or dead bodies of other community members
Process by which primary producers use sunlight to convert carbon dioxide and water into sugars regenerating oxygen.
s a relation between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.
an organism that breaks down nonliving matter into simple parts that can be taller up and reused by primary producer
process by which bacteria use energy stored in bands of hydrogen sulfide to convert carbon dioxide and water to sugar.
somewhat predicable series of changes over tie in a community
an organism that eats plants