CSS Forestry Questions & Answers - Part-1 - Set 15

1)   The advantage/s of fire:

a. Reduction of biotic thurst
b. Destruction of diseased plants
c. Both (a) & (b)
d. None of these
Answer  Explanation 

ANSWER: Both (a) & (b)

Explanation:
No explanation is available for this question!


2)   Odum did not recognise the following relationship as a positive interaction:

a. Commensalism
b. Protoco-operation
c. Mutualism
d. Antibiosis
Answer  Explanation 

ANSWER: Antibiosis

Explanation:
No explanation is available for this question!


3)   The zone of soil showing microbial activity around the roots of higher plants is called:

a. Rhizosphere
b. Rhizoplane
c. Soil microflora
d. All of these
Answer  Explanation 

ANSWER: Rhizosphere

Explanation:
No explanation is available for this question!


4)   The term symbiosis was proposed by:

a. Mc Dougal
b. Warming
c. Odum
d. de Bary
Answer  Explanation 

ANSWER: de Bary

Explanation:
No explanation is available for this question!


5)   The device or structure where plants are grown in a controlled environment:

a. Culture chamber
b. Inoculation chamber
c. Phytotron
d. All of these
Answer  Explanation 

ANSWER: Phytotron

Explanation:
No explanation is available for this question!


6)   When one population is harmed and the other remains unaffected the relationship is called:

a. Amensalism
b. Predation
c. Protoco-operation
d. Parasitism
Answer  Explanation 

ANSWER: Amensalism

Explanation:
No explanation is available for this question!


7)   Plants growing in oxygen deficient soils possess:

a. No roots
b. Longer roots system
c. Aerial roots system
d. Shallow root system
Answer  Explanation 

ANSWER: Shallow root system

Explanation:
No explanation is available for this question!


8)   The relationship between the alga Cladophora and the snail shell on which it grows corresponds to:

a. Commensalism
b. Predation
c. Neutralism
d. Mutualism
Answer  Explanation 

ANSWER: Commensalism

Explanation:
No explanation is available for this question!


9)   The proto co-operation is also called:

a. Non-obligatory mutualism
b. Non-obligatory commensalism
c. Facultative predation
d. Facultative parasitism
Answer  Explanation 

ANSWER: Non-obligatory mutualism

Explanation:
No explanation is available for this question!


10)   As a result of fire, there is destruction of the following components of soil:

a. Litter
b. Organisms
c. Inorganic matter
d. All of these
Answer  Explanation 

ANSWER: Litter

Explanation:
No explanation is available for this question!


11)   The following relationship does not correspond to mutualism:

a. Zoophily
b. Zoochory
c. Epiphytism
d. Mycorrhiza
Answer  Explanation 

ANSWER: Epiphytism

Explanation:
No explanation is available for this question!


12)   The serotinous cones show:

a. In situ seed germination
b. Longer viability
c. early cone separation
d. All these characters
Answer  Explanation 

ANSWER: Longer viability

Explanation:
No explanation is available for this question!


13)   When cane plants grown in the forest, they scamble over other vegetation and this corresponds to:

a. Commensalism
b. Competition
c. Exploitation
d. None of these
Answer  Explanation 

ANSWER: Commensalism

Explanation:
No explanation is available for this question!


14)   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
Answer  Explanation 

ANSWER: Borne underground

Explanation:
No explanation is available for this question!


15)   The interspecific competition is also called:

a. Interference competition
b. Scramble competition
c. Allelopathy
d. Synnecrosis
Answer  Explanation 

ANSWER: Interference competition

Explanation:
No explanation is available for this question!


16)   The relationship between the alga Microcystis and the surrounding fauna corresponds to:

a. Amensalism
b. Parasitism
c. Predation
d. Exploitation
Answer  Explanation 

ANSWER: Amensalism

Explanation:
No explanation is available for this question!


17)   The most interfering biotic components are:

a. Birds
b. Herbivores
c. Hunters
d. Human beings
Answer  Explanation 

ANSWER: Human beings

Explanation:
No explanation is available for this question!


18)   Those chemicals, which are released by one organism but they destroy the other organism are precisely called:

a. Allomones
b. Allelochemics
c. Kairomones
d. Depresants
Answer  Explanation 

ANSWER: Depresants

Explanation:
No explanation is available for this question!


19)   Which of the following plants does not show predation?

a. Darlingtonia
b. Viscum
c. Both (a) & (b)
d. Cephalotus
Answer  Explanation 

ANSWER: Viscum

Explanation:
No explanation is available for this question!


20)   Those chemicals which are produced by plants and affect other plants are broadly called:

a. Depresants
b. Allomones
c. Allelochemics
d. Kairomones
Answer  Explanation 

ANSWER: Allelochemics

Explanation:
No explanation is available for this question!


21)   The type of relationship where weaker partner is benefitted and stronger remains unaffected is sometime called:

a. Allotropy
b. Allelopathy
c. Synnecrosis
d. Allolimy
Answer  Explanation 

ANSWER: Allotropy

Explanation:
No explanation is available for this question!


22)   Mark the hyperparasite:

a. Thesium
b. Tape worm
c. Bacteria
d. Balanophora
Answer  Explanation 

ANSWER: Bacteria

Explanation:
No explanation is available for this question!


23)   Useful adaptation of hydrophytes is:

a. Large leaves
b. Decrease in mechanical tissue
c. Large mechanical tissue
d. Increase in aerenchyma
Answer  Explanation 

ANSWER: Increase in aerenchyma

Explanation:
No explanation is available for this question!


24)   The ecologically fixed and genetically irreversed component of species is called:

a. Ecotone
b. Ecological equivalents
c. Ecotype
d. None of these
Answer  Explanation 

ANSWER: Ecotype

Explanation:
No explanation is available for this question!


25)   More than 70% of world's freshwater is contained in:

a. Polar ice
b. Greenland
c. Antarctica
d. Glaciers and Mountains
Answer  Explanation 

ANSWER: Glaciers and Mountains

Explanation:
No explanation is available for this question!


26)   Study of relationship between communities and environment is called:

a. Autecology
b. Ethology
c. Ecology
d. Syncology
Answer  Explanation 

ANSWER: Syncology

Explanation:
No explanation is available for this question!


27)   Possibilities of presence of coal in a particular area can be guessed by the study of:

a. Economic Botany
b. Ecology
c. Pollen analysis
d. Mining the area
Answer  Explanation 

ANSWER: Ecology

Explanation:
No explanation is available for this question!


28)   MAB stands for:

a. Man and biology programme
b. Man and biosphere programme
c. Mammals and biosphere programme
d. Mammals and biology programme
Answer  Explanation 

ANSWER: Man and biosphere programme

Explanation:
No explanation is available for this question!


29)   In whch region the jiicy fruits are found?

a. Desert
b. Hills
c. Plains
d. Sea
Answer  Explanation 

ANSWER: Desert

Explanation:
No explanation is available for this question!


30)   During adverse season, thermophytes survive by:

a. Bulbs
b. Corms
c. Rhizomes
d. Seeds
Answer  Explanation 

ANSWER: Seeds

Explanation:
No explanation is available for this question!


31)   Which one has feebly developed root system and numerous air cavities?

a. Xerophytes
b. Halophytes
c. Hydrophytes
d. Mesophytes
Answer  Explanation 

ANSWER: Hydrophytes

Explanation:
No explanation is available for this question!


32)   Reduction of mechanical and vascular tissue and poor roots are found in:

a. Hydrophytes
b. Xerophytes
c. Halophytes
d. None of these
Answer  Explanation 

ANSWER: Hydrophytes

Explanation:
No explanation is available for this question!


33)   Plants die from prolonged water logging because:

a. Soil nutrients become very dilute
b. Root respiration stops
c. Nutrients leach down due to excessive water
d. Cell sap in plant becomes too dilute
Answer  Explanation 

ANSWER: Root respiration stops

Explanation:
No explanation is available for this question!


34)   Sxerophytes are generally found in:

a. Desetts
b. Water
c. Hills
d. Water bank
Answer  Explanation 

ANSWER: Desetts

Explanation:
No explanation is available for this question!


35)   Relative to shoots, the roots can be very massive in plants of:

a. Deserts
b. Lakes and ponds
c. Mixed temperate forests
d. Mixed tropical forests
Answer  Explanation 

ANSWER: Deserts

Explanation:
No explanation is available for this question!


36)   Endemic plants are those which grow in:

a. Fresh water lakes
b. Shady places
c. Tissue of other plants
d. Geographically limited areas
Answer  Explanation 

ANSWER: Geographically limited areas

Explanation:
No explanation is available for this question!


37)   Plants of salty seashore wetlands are called:

a. Halophytes
b. Heliophytes
c. Hydrophytes
d. Saprophytes
Answer  Explanation 

ANSWER: Halophytes

Explanation:
No explanation is available for this question!


38)   Unutilized place for the growth of flora (vegetation) is:

a. Dark cave
b. Pond
c. River bank
d. Saline water
Answer  Explanation 

ANSWER: Dark cave

Explanation:
No explanation is available for this question!


39)   The average amount of CO2 in atmosphere is:

a. 0.30%
b. 0.00%
c. 3.00%
d. 0.03%
Answer  Explanation 

ANSWER: 0.03%

Explanation:
No explanation is available for this question!


40)   Stratification is most complex in:

a. Tropical forest
b. Deciduous forests
c. Savannah
d. Both (a) and (b)
Answer  Explanation 

ANSWER: Deciduous forests

Explanation:
No explanation is available for this question!


41)   Eichhornia cressipes is a:

a. Desert plant
b. Parasite
c. Water plant
d. Terrestrial plant
Answer  Explanation 

ANSWER: Water plant

Explanation:
No explanation is available for this question!


42)   Mycorrhiza is the phenomenon of:

a. Antagonism
b. Parasitism
c. Endemism
d. Symbiosis
Answer  Explanation 

ANSWER: Symbiosis

Explanation:
No explanation is available for this question!


43)   Which of the following does not have stomata?

a. Hydrophytes
b. Submerged hydrophytes
c. Xerophytes
d. Mesophytes
Answer  Explanation 

ANSWER: Submerged hydrophytes

Explanation:
No explanation is available for this question!


44)   Excessive aerenchyma is characteristic of:

a. Hydrophytes
b. Xerophytes
c. Mesophytes
d. Heliophytes
Answer  Explanation 

ANSWER: Hydrophytes

Explanation:
No explanation is available for this question!


45)   A0 layer of soil contains

a. Mineral soil
b. Litter
c. Unweathered material like rock
d. None of the above
Answer  Explanation 

ANSWER: Litter

Explanation:
No explanation is available for this question!


46)   Which of the following is not a angiosperm?

a. Chara
b. Hydrilla
c. Lotus
d. Water lettuse
Answer  Explanation 

ANSWER: Chara

Explanation:
No explanation is available for this question!


47)   Water-logged condition will quickly occur in which type of soil?

a. Sand
b. Loam
c. Graved
d. Clay
Answer  Explanation 

ANSWER: Clay

Explanation:
No explanation is available for this question!


48)   In water logged soil plants cannot grow properly because the soil is:

a. Physiologically wet
b. Physologically dry
c. Physically dry
d. None of the above
Answer  Explanation 

ANSWER: Physologically dry

Explanation:
No explanation is available for this question!


49)   Water pores are found in which of the following plants?

a. Xerophytes
b. Mesophytes
c. Hydrophytes
d. Halophytes
Answer  Explanation 

ANSWER: Hydrophytes

Explanation:
No explanation is available for this question!


50)   Plants, such as Prosopis, Acacia, and Capparis represent examples of tropical:

a. Grasslands
b. Evergreen forests
c. Deciduous forests
d. Thorn forests
Answer  Explanation 

ANSWER: Thorn forests

Explanation:
No explanation is available for this question!