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.
The executor must file a federal income tax return (Form 1041) if the estate has: 1  gross income for the tax year of $600 or more, or. 2  a beneficiary who is a nonresident alien.