Refugee status is a form of protection that may be granted to people who meet the definition of refugee and who are of special humanitarian concern to the United States. Refugees are generally people outside of their country who are unable or unwilling to return home because they fear serious harm. For a legal definition of refugee, see section 101(a)(42) of the Immigration and Nationality Act (INA). You may seek a referral for refugee status only from outside of the United States. For more information about refugees, see the âRefugeesâ section.
There are 7 main types of algae (but more do exist) that aquariums can have. Brown algae. Brown Algae. This will probably be the first type of algae any one will encounter in the aquarium and could appear from early on and will normally disappear when the tank stabilises and becomes more mature. Brown algae could be in the form of a fluff like or spot appearance on plant leaves, rocks, glass, substrate or decorations.
Brown algae is the largest type of algae. Brown algae is in the phylum Phaeophyta, which means dusky plants.. Brown algae is brown or yellow-brown in color and found in temperate or arctic waters. Brown algae typically have a root-like structure called a holdfast to anchor the algae to a surface.. Green Algae-the Chlorophyta. There are more than 4,000 species of green algae. Green algae may be found in marine or freshwater habitats, and some even thrive in moist soil. These algae come in 3 forms: unicellular, colonial or multicellular.