Feb 4, 2018 · Their scientific names tell us that they belong to the same genus. the polar bear scientific name is Ursus maritimus Grizzly bear scientific name is Ursus arctos As per the taxonomy classification, which can be read here, species which are closely related to each other are grouped together. In bears case, they all are categorized into the genus Ursus. Both Polar …

Feb 28, 2016 · The US Endangered Species Act is an environmental law passed in 1973 to protect threatened species and the ecosystems those species depend on. The US Endangered Species Act is an environmental law passed in 1973 to protect threatened species (plants and animals) and the ecosystems those species depend on. The law requires federal agencies to …

May 15, 2018 · Invasive species can threaten the native species and overpopulate an ecosystem. When a native species is threatened by an invasive species, the native species can become extinct and disrupt the environment because it no longer gains the benefits of the species that lived there. Overpopulation of an invasive species can strip the environment of essential …

Apr 27, 2017 · Dolphin, porpoise and whale are all included in order Cetacea under class Mammalia. Both Dolphin and Porpoise are classified in same mammalian order Cetacea, the name derived from Greek ketos meaning huge fish. Both have streamlined body, forelimbs are modified in flippers, hindlimbs are vestigeal, both mainly eat fish. () Dolphins and porpoises …

Sep 21, 2014 · Bioindicators are species that can be used as a measure of some aspects of an ecosystem's health. The species' population or health may be a proxy for the ecosystem's health. For example, lichens are often used as indicators of air quality. Since they don't have roots and get a lot of their nutrients from the air, they are a trustworthy indicator of an area's air quality. …

Jul 12, 2014 · Profiling itself can be misused. For example, saying that all Mexicans are drug dealers or all whites are lazy. But as far as using DNA to find out who killed someone or who is that person was who was found dead is not misusing it. Using DNA to see if one bird species is related to another bird species is also not a misuse of that technology. Perhaps using DNA to …

Jan 5, 2016 · However, the role of invasive species in species extinction is still discussed (See this article) Climate change; Already 5 massive species extinctions occured at the geological time scale. Some of them are due to a sharp climate change. Local climate change can also lead to a biodiversity modification in some areas.

May 2, 2015 · The only paramagnetic one is selenium. A paramagnetic species will have an electron configuration that shows unpaired electrons. Unpaired electrons are what will cause the respective atom (or ion) will be attracted to a magnetic field. If the opposite is true, i.e. a species has no unpaired electrons in its electron configuration, than that species will be diamagnetic. …

Jun 9, 2017 · What animal classification is a crab? What is animal classification? ...

Jan 20, 2018 · Allopatric is when a species is separated by a geographical barrier and then speciate, Sympatric is when a species is separated by ecological or behavioural differences. Allopatric speciation is like when a population of a species is separated by a mountain or ocean for a long enough time (around 3 million years) that they become different species, due to …