Useful adaptation of hydrophytes is:

Related Mcqs:

1. In submerged hydrophytes entry of CO2 is through:

   A. Epidermis as dissolved CO2
   B. Epidermis as carbonates only
   C. Epidermis as carbonates only
   D. Both (b) and (c)

2. Submerged hydrophytes have well developed:

   A. Vascular system
   B. Aerenchyma
   C. Root system
   D. Stoma

3. Hydrophytes usually have:

   A. Well developed stomata
   B. Well developed aerenchyma
   C. Well developed root system
   D. Well developed vascular system

4. In submerged hydrophytes, which of the following is present?

   A. Air spaces
   B. Cuticle
   C. Well developed sclerenchyma
   D. Well developed vascular tissues

5. In submerged hydrophytes, functional stomata are found:

   A. On upper surface of the leaf
   B. Lower surface of the leaf
   C. Both the surfaces of the leaf
   D. Nowhere on the plant

6. Hydrophytes (Aquatic Plants) means:

   A. A reduction of the protective, conducting and supporting tissues
   B. Absences of palisade tissue
   C. Both (a) & (b)
   D. None of these

7. As an adaptation to fire, some plants produce lignotubres which are:

   A. Borne on the leaves
   B. Borne underground
   C. Present on the main stem
   D. Suspended from the branches

8. Which adaptation is seen in the leaf insect?

   A. Migration
   B. Camouflaging
   C. Batesion mimicry
   D. Mullerian mimicry

9. The West Pakistan (Adaptation of Law) Ordinance ______.

   A. 1958
   B. 1959
   C. 1960
   D. 1961

10. Mullerian mimicry is useful to:

    A. Mimic only
    B. Model only
    C. Both (a) & (b)
    D. Either of these