Ecosystem MCQs | Ecosystem Short Questions and Answers

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Questions
What is obtained by the activity of decomposer for the producers ?
A Nutrient
B Food
C Carbohydrate
D Energy

Answer:Nutrient
2 It 1 lac living organisms are included in third trophic level than what would be the number of producers ?
A 10 lac
B 10 thousand
C 1 thousand
D 1crore (million)

Answer: 1crore (million)
3 In an ecosystem, when organisms can be included in more than one trophic level ?
A Phytoplankton
B Fish
C Zooplankton
D Frog

Answer: Fish
4 When organism of aquatic ecosystem is at equivalent trophic level in when cow is included ?
A Zooplankton
B Phytoplankton
C Nekton
D Benthos

Answer:Zooplankton
5 Which of the follows is an in complent Ecosystem ?
A Grass land
B Cave
C River
D Wet land

Answer: Cave
6 What is correct for human ?
A Herbivore
B Carnivore
C Autotrophs
D Omnivores

Answer: Omnivores
7 Which type of organisms, fungi & Bacteria of forest ecosystem generally called ?
A Producers
B Decomposers
C Primary consumer
D Secondary consumers

Answer: Decomposers
8 What is correct for the artificial ecosystem ?
A Biodiversity is less
B Biodiversity is High
C Ecosystem can not be form by human
D It is more stable than Natural ecosystem

Answer:Biodiversity is less
9 The natural place of an organism or community is known as
A Niche
B Biome
C Habitat
D Habit

Answer:Habitat
10 Which is the renewable exhaustible natural energy resource?
A Coal
B Petroleum
C Kerosene
D Biomass

Answer: Biomass
11 According to Shelford’s Law of Tolerance, the organisms wide environmental factor tolerance limit show
A Narrow distribution with low population size
B Wide distribution with high population size
C Narrow distribution with high population size
D Wide distribution with low population size

Answer: Wide distribution with high population size
12 Plants growing under direct sunlight are known as
A Heliophytes
B Sciophytes
C Psamophytes
D Dicots

Answer: Heliophytes
13 Plants growing under shade are known as
A Psamophytes
B Sciophytes
C Heliophytes
D Monocots

Answer:Sciophytes
14 An orchid living on a tree exhibit
A Predator
B Mutualism
C Commensalism
D Parasitic

Answer:Commensalism
15 Which statement is correct with respect to the food chain?
A Every component of food chain forms trophic level
B Inter-relation between different food chains is known as a food web
C All the chains formed by nutritional relations is used to understand energy flow
D All of the above

Answer:All of the above
16 The process of vernalization is practised in
A Cold countries
B Hot countries
C Only in sub-tropical countries
D Only in tropical countries

Answer:Cold countries
17 Which of the following requires maximum energy?
A Secondary consumer
B Decomposer
C Primary consumer
D Primary producer

Answer:Primary producer
18 The bottom area where production is less than respiration in a pond ecosystem is termed as
A Profundal zone
B Tidal zone
C Benthic zone
D Limnetic zone

Answer:Profundal zone
19 Which is not the characteristic of ‘r’ selected species?
A Reproduce quickly
B Parental care
C A low survival rate of progenies
D Produce a large number of progenies

Answer: Parental care
20 Which is not the characteristic of a population?
A Natality
B Mortality
C Stratification
D Sex ratio

Answer: Stratification

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