The morphologies of certain tissues and organs can appear quite similar, making it difficult for a student to differentiate between them. The ability to successfully tell one tissue, or organ, cell, or organelle apart from another requires that you look for specific telltale features. Often those telltale features relate to the different functions of the two confusing structures.
â¢ FEBRUARY 2 (noun) The noun FEBRUARY 2 has 1 sense: 1. if the ground hog emerges and sees his shadow on this day, there will be 6 more weeks of winter. Familiarity information: FEBRUARY 2 used as a noun is very rare.
late 14c., to join or unite (something to something else), from Latin addere add to, join, attach, place upon, from ad-to (see ad-) + -dere comb. form meaning to put, place, from dare to give (see date (n.1)). Meaning to do sums, do addition also is from late 14c. Related: Added; adding. To add up make sense is from 1942.