Which of the following adaptations is likely to be observed in arid condition ?
(i) vertically hanging leaves
(ii) presence of salt glands
(iii) green fleshy stem
(iv) absence of vascular tissue, scarcely developed vascular tissue.

Which among the following has specialised tissue for conduction of water ? (i) Thallophyta (ii) Bryophyta (iii) Pteridophyta (iv) Gymnospermae.

Which of the following statements is/are not correct regarding connective tissues ? (i) They are most abundant and widely distributed in the body of complex animals (ii) They connect and support other tissues (iii) They include diverse tissues such as bones, cartilage, tendons, adipose and other loose connective tissues. (iv) They form the internal and external lining of many organs (v) In all connective tissues except blood, the cells secrete fibres of structural proteins like collagen and elastin.

Which of the following statements is/are not correct regarding connective tissues ? (i) They are most abundant and widely distributed in the body of complex animals (ii) They connect and support other tissues (iii) They include diverse tissues such as bones, cartilage, tendons, adipose and other loose connective tissues. (iv) They form the internal and external lining of many organs (v) In all connective tissues except blood, the cells secrete fibres of structural proteins like collagen and elastin.

Identify the correct statement from the below statements. (I) Protoderm gives rise to epidermal tissue system (ii) Procambium gives rise to primary vascular tissues (iii) Ground meristem gives rise to primary vascular tissues (iv) Secondary meristem produces cork cambium

Which of the following statemetns is/are true? I. Trimerous condition of floral whorl is characteristic of dicotyledons. II. Adiantum is also called walking fern. III. In gymnosperms the vascular system consists of xylem without vessels and phloem without companion cells. IV. Riccia and Marchantia are liverworts.

Which of the following statements are incorrect? (i). Secondary growth usually occurs in monocotyledons. (ii). Bark refers to all tissues interior to vascular cambium. (iii). Lenticels permit the exchange of gases between the outer atmosphere and the internal tissue of the stem. (iv). Annual rings give an estimate of the age of the tree.

Which of the following statements are incorrect? (i). Secondary growth usually occurs in monocotyledons. (ii). Bark refers to all tissues interior to vascular cambium. (iii). Lenticels permit the exchange of gases between the outer atmosphere and the internal tissue of the stem. (iv). Annual rings give an estimate of the age of the tree.

While doing anatomy practical, students observe ten following characters: (i) Undifferentiated ground tissue. (ii) Numerous vascular bundles and are scattered. (iii) Sclerenchymatous hypodermis. (iv) Presence of bundle sheath. Identify the material. Write any one example of a plant having such characters.