Marine Bio Chap 2 Section 3 key terms
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Created by:
horseyperson3393 on September 15, 2010
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Classes:
Randolph class of '11, Class of '11, 2011 Randolph, Marine Biology . Mr. Brown
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18 terms
Terms | Definitions |
|---|---|
 detritus | the excrement and other waste products of all types of organisms as well as the dead remains of the organisms themselves |
| biogeochemical cycles | pathway of biologically important nutrients between a living organism and its nonliving reservoir |
| food chains | a diagrammatic representation of trophic relationships |
| food web | a diagrammatic representation of the complete set of trophic relationships of an organism |
| symbiosis | an intimate and prolonged relationship between two (or more) organisms in which at least one partner obtains some benefit from the relationship |
| mutualism | a type of symbiotic relationship in which both of the symbiont and the host benefit from the association |
| symbiont | a beneficiary of a symbiotic relationship |
| host | one member of the host symbiont pairing characteristic of all symbiotic relationships |
| parasitism | a type of symbiotic relationship in which the parasite lives on or in the host and benefits at the expense of the host. |
| commensalism | a symbiotic relationship in which the symbiont benefits without seriously affecting the host one way or another |
| benthos | marine organisms that live in or on the sea bottom |
| epifauna | benthic animals that crawl about the sea bottom or are firmly attached to it |
| infauna | animals that live within the sediment of the sea bottom |
| nekton | large actively swimming marine animals |
| plankton | free floating, usually minute organisms of the sea |
| phytoplankton | microscopic photosynthetic members of the plankton |
| zooplankton | animal members of the plankton |
| suspension feeders | an animal that uses a filtering device or sticky mucus to obtain plankton or detritus from the water. |
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