endosperm tissue of angiosperms has what ploidy level
Endosperm About 70% of angiosperm species have endosperm cells that are polyploid.[4] These are typically triploid (containing three sets of chromosomes), but can vary widely from diploid (2n) to 15n.[5]
Epithelium Epithelium (/ˌɛpɪˈθiːliəm/)[1] is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue. Epithelial tissues line the outer surfaces of organs and blood vessels throughout the body, as well as the inner surfaces of cavities in many internal organs. An example is the epidermis, the outermost layer of the skin.