نتایج جستجو برای: grade organisms
تعداد نتایج: 259279 فیلتر نتایج به سال:
Pollutants, by disrupting metabolic processes, can interfere with development, and, at critical periods of development, can act as teratogens. Such interference with normal development can be used as a bioassay. Some screening tests are based on this phenomenon. As teratogens, pollutants are fairly nonspecific. Many different classes may elicit the same developmental responses. Mechanisms of te...
The Kerguelen archipelago, isolated in the Southern Ocean, shelters a blue mussel Mytilus metapopulation far from any influence of continental populations or any known hybrid zone. The finely carved coast leads to a highly heterogeneous habitat. We investigated the impact of the environment on the genetic structure in those Kerguelen blue mussels by relating allele frequencies to habitat descri...
Aquatic organisms are exposed and adjust to a wide variety of environmental challenges including natural and anthropogenic factors. Natural sources are understood the effects of temperature, and saline fluctuations, oxygen availability, the relative abundance of chemical elements and pathogenic invasion. On the contrary, anthropogenic factors are considered the availability of heavy metals, the...
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