- 行业: Government
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
Having an internal body temperature that is dependent on the surrounding temperature. Most aquatic animals are ectotherms; also caled poikilothermal or "cold blooded".
Industry:Natural environment
In taxonomy, the characters, or most important characters, which distinguish a taxon from other similar or closely related taxa.
Industry:Natural environment
Organisms which are invisible, or nearly so, to the naked eye.
Industry:Natural environment
Sound waves that have a frequency that is lower than what humans can hear (i.e. Below about 20 hertz). Some baleen whales and elephants produce infrasounds to communicate over long distances.
Industry:Natural environment
The political/social/economic process by which the environment is protected and resources are used wisely.
Industry:Natural environment
The largest complex barrier coral reef in the world, approximately 2,000 km (1,250 mi) long, in the Coral Sea, forming a natural breakwater for the northeastern coast of Australia. It is separated from the mainland by a shallow lagoon from 16–161 km (10 to 100 mi) wide. It is It is composed of more than 2,800 individual reefs and in some places it is more than 122 m (400 ft) thick. The Great Barrier Reef Marine Park, more than 340,000 km2 (130,000 mi2), encompasses most of the reefs and interreef areas as well as the neighboring lagoon and a large section of the continental shelf. It is the largest UNESCO World Heritage Area.
Industry:Natural environment
The best guess arrived at after considering all the information given in a problem.
Industry:Natural environment
A change in the timing of ontogenetic events between two species. These can be the result of relatively small genetic changes between an ancestor and its descendant species.
Industry:Natural environment
