Direction: Refer to the given dichotomous key and answer the following question.I. (a) The cells of tissue have walls. - Go to II(b) The cells of tissue have no walls. - Go to IIIII. (a) The cells are living. - Go to IV(b) The cells are dead. - Go to VIII. (a) The tissue lines the oviducts. – R(b) The tissue transports nutrients. – SIV. (a) Cells store air. – P(b) The tissue conducts nutrients. – QV. (a) The tissue conducts water. – T(b) It is only a mechanical tissue. - USelect the incorrect option regarding tissues P, Q, R, S, T and U.

• A. P is found in aquatic floating plants whereas Tis greatly reduced or absent in aquatic plants.
• B. R and S are animal tissues while P and Q are plant tissues.
• C. S can be xylem, Q can be blood and U can be parenchyma.
• D. R is ciliated epithelial tissue whereas U possesses uniform wall thickenings of lignin.