membrane vs animal tissue

membrane and animal tissue both are nouns.

Word	Noun	Adjective	Verb	Adverb
membrane	Yes	No	No	No
animal tissue	Yes	No	No	No

As nouns, animal tissue is a hypernym of membrane; that is, animal tissue is a word with a broader meaning than membrane:

membrane: a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
animal tissue: the tissue in the bodies of animals

membrane (noun)	animal tissue (noun)
a thin pliable sheet of material	the tissue in the bodies of animals
a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants