Which of the following is a mangrove plant?

Related Mcqs:

1. The plant that has a characteristic component of the mangrove vegetation is:

   A. Rhizophora mangle
   B. Ficus religiosa
   C. Mangifera indica
   D. Prosopis specigera

2. The mangrove plants are generally characterised by:

   A. Mircophylly
   B. Pneumatophores and vivipary
   C. Absence of aerenchyma
   D. Poor water storage

3. Mangrove vegetation is found in:

   A. Dehradun valley
   B. Kullu valley
   C. Western ghats
   D. Sunderbans

4. Which of the following is a short day plant?

   A. Triticum
   B. Lycopersicon
   C. Gossypium
   D. Nicotiana

5. The chemical produced by the host plant to protect themselves against fungal infection is:

   A. Toxin
   B. Hormone
   C. Phytotoxin
   D. Phytoalexin

6. The classification of plant groups on the basis of temperature differentiating four zone such as megatherms was proposed by:

   A. Clements
   B. Raunkiaer
   C. Odum
   D. Warming

7. When a plant of hot climate is transferred to colder regions, it gets an injury called:

   A. Chilling
   B. Thermal death
   C. Desiccation
   D. Freezing

8. The alpine forests are classed under the plant group called:

   A. Mesotherms
   B. Megatherms
   C. Microtherms
   D. Hekistotherms

9. The stems of submerged water plant are soft and weak because:

   A. They are absolutely devoid of xylem
   B. They totally lack phloem
   C. They do not have stomata
   D. The supporting tissues and xylem are feebly developed

10. Percentage of water left in the soil when a plant wilts is known as:

    A. Turgidity
    B. Wilting coefficient
    C. Field capacity
    D. Water retaining power of the soil