Viscera redirects here. For other uses, see Viscera (disambiguation). In biology, an organ or viscus is a collection of tissues joined in a structural unit to serve a common function. In anatomy, a viscus (/ËvÉªskÉs/) is an internal organ, and viscera (/ËvÉªsÉrÉ/) is the plural form. Organs are composed of main tissue, parenchyma, and sporadic tissues, stroma.
exists and is an alternate of . There is no age requirement, if you have sufficient income you have to file taxes. There is no age requirement, if you have sufficient income you have to file taxes.
There is no minimum age for a U.S. sponsor (petitioner) to file a petition for a spouse. However, you must be at least 18 years of age and have a residence (domicile) in the U.S. before you can sign the Affidavit of Support (Form I-864 or I-864EZ).