Tag: adapting to a habit

Questions Related to adapting to a habit

Halophytes maintain a proper osmotic concentration by

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Excreting salts

  2. Mucilage and stored water

  3. Proline and sorbitol

  4. All of the above

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Correct Option: D

Viviparity and pneumatophores are features of

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Hydrophytes

  2. Halophytes

  3. Mesophytes

  4. Xerophytes

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Correct Option: B

Vivipary in plants is characteristic of 

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Coastal dunes

  2. Saline soils

  3. Mangroves

  4. All of the above

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Correct Option: C

Mangrove of marshy Sunderbans is characterised by

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Pneumatophores

  2. Prop roots

  3. Vivipary

  4. All of the above

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Correct Option: D

The dominant species of mangroves is

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Rhizophora

  2. Avicennia

  3. Both Rhizophora and Avicennia

  4. Ceriops

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Correct Option: C

Halophytic plants are found in

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Sand

  2. Saline environments

  3. Rocks

  4. Dry conditions

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Correct Option: B

Plants living partly inside water and partly above it are :

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Xerophytes

  2. Thallophytes

  3. Hydrophytes

  4. Helophytes

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Correct Option: D
Explanation:

Helophytes are plants in which the roots lie under the soil below the water level, but the aerial shoots protrude and develop above the water. Examples include Typha minima, common reed, etc.

Characteristic feature of mangrove plants is

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Apospory

  2. Heterospory

  3. Parthenocarpy

  4. Vivipary

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Correct Option: D
Explanation:

A. Apospory -include formation of Diploid gametophytes, without meiosis and spores, from vegetative cells of the sporophyte. for example - mosses and ferns.
B. Heterospory- is fornation of spores of two different sizes i.e smaller of these, the microspore, is male and the larger megaspore is female by the sporophytes of land plants. for example -pteridophytes -Selaginella and Salvinia.
C. Parthenocarpy is the development of a fruit without fertilization, which makes the fruit seedless, for example- Pineapple, banana.

D. Vivipary- Mangroves are viviparous, as mangroves disperse propagules or embryonic development while the propagule is attached to the parent tree.
( Thus, correct answer is option-D. Vivipary )

Characteristic feature of halophyte is

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Velamen

  2. Lenticel

  3. Pneumatophore

  4. Hydathode

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Correct Option: C

Vivipary occurs in

botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

  1. Betula

  2. Rhizophora

  3. Mango

  4. Psidium

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Correct Option: B