(a) Identify Figures A, B and C.
(b) Which one of them has heavy deposition of lignin ?
(c) Which one of them provides both mechanical strength as well as flexibility ?
(d) Which one of them can be modified to form air cavities in aquatic plants ?
(e) Which one of them is commercially exploited to obtain Hemp and Jute ?

Which one of them is the weakest ?

Which one of them has the highest melting point ?

Which one of them is incorrect:

Which one of them is more volatile component?

(a) Identify figures A and B. (b) Which is called tesselated and pavement epithelium ? (c) Which one lines the gastrointestinal tract and epiglottis ?

(a) Identify figures A and B. (b) Label X, Y and Z. (c) Which one act as impulse booster ? (d) Which one is under control our will ?

(a) Identify figures A to F ? (b) What is the phylum of D, E and F ? (c) What is the division of A, B and C ? (d) Which of them is unicellular and eukaryotic organism ? (e) Which one of them exhibits (i) Heterotrophic nutrition , (ii) Mixotrophic nutrition (f) Which one of them is multicellular decomposer ? (g) Which one amphibian of plant kingdom ? (h) In which one of them plant xylem lacks vessels and phloem is without companion cells ? (i) What is the scientific name of each of them : (i) Male shield fern , (ii) Bread mould ? (j) In which of them endosperm is haploid ?