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Question-1
Identify the plant belonging to the reed-swamp stage in hydrarch succession.
(A)
Juncus
(B)
Sagittaria
(C)
Salix
(D)
Trapa
Question-2
Lichen is the pioneer vegetation in which succession?
(A)
Hydrosere
(B)
Lithosere
(C)
Psammosere
(D)
Xerosere
Question-3
Energy enters the ecosystem through
(A)
herbivore
(B)
carnivore
(C)
producer
(D)
decomposer
Question-4
In a lake, phytoplankton grow in abundance in
(A)
littoral zone
(B)
limnetic zone
(C)
profundal zone
(D)
benthic region
Question-5
Most diverse organisms of an ecosystem are
(A)
producers
(B)
consumers
(C)
carnivores
(D)
decomposers
Question-6
Littotal zone is located along the
(A)
high mountains
(B)
sea
(C)
rivers
(D)
desert
Question-7
When the two ecosystem overlap each other, the areas is called
(A)
habitat
(B)
niche
(C)
ecotone
(D)
ecotype
Question-8
Community is a group of independent and interacting population of
(A)
different species
(B)
same species
(C)
same species
(D)
different species in a specific area
Question-9
The transition zone between two communities is known as
(A)
ecotone
(B)
keystone species
(C)
edge species
(D)
critical link species
Question-10
Which of the following plants develop characters of xerophytes?
(A)
Heliophytes
(B)
Sciophytes
(C)
Hydrophytes
(D)
Halophytes
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Plus 1 Biology Science
Tamil Nadu (English Medium)
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