21. The vascular bundle is said to be open if
22. Which among the following one lays eggs and does not produce young ones directly?
23. The chief elements of conduction in gymnosperms and pteridophytes are
24. From which of following groups does the whale belongs?
25. Where are the Eucalyptus trees found in abundance?
26. After bringing out of water fishes die because
27. In Oomycetes, the antheridium when develops on a separate hyphae is described as
28. Redness in apple is due to
29. Fish generally breathe through
30. Match List-I with List-II and select the correct answer:
List-I (Stomata types)
List-II (Cell arrangements)
a. Allium type
1. Guard cells are not surrounded by any recognisable subsidiary cells
b. Hordeum type
2. Guard cells are dumbell-shaped and are surrounded by two subsidiary cells
c. Rhoeo type
3. Guard cells are surrounded by two lateral and two terminal subsidiary cells
d. Commelina type
4. Guard cells are surrounded by four lateral and two terminal subsidiary cells
| List-I (Stomata types) | List-II (Cell arrangements) |
| a. Allium type | 1. Guard cells are not surrounded by any recognisable subsidiary cells |
| b. Hordeum type | 2. Guard cells are dumbell-shaped and are surrounded by two subsidiary cells |
| c. Rhoeo type | 3. Guard cells are surrounded by two lateral and two terminal subsidiary cells |
| d. Commelina type | 4. Guard cells are surrounded by four lateral and two terminal subsidiary cells |
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