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WorksheetsEcosystem and Biodiversity
Total questions: 40
Worksheet time: 20mins
Which one of the following is not a gaseous biogeochemical cycle in an ecosystem?
Carbon cycle
Phosphorous cycle
Sulphur cycle
Nitrogen cycle
Transfer of energy from source of plants through a series of organism is known as ________________
a) Food web
b) Energy cycle
c) Food chain
d) Biological system
The type of ecosystem with the highest mean plant productivity is _______________
a) Tundra
b) Temperate grassland
c) Desert
d) Tropical rain forest
In ecosystem standing crop refers to________________
All the green plants
All the non living materials
All living and dead animals
All the living materials both animals and plants
An ecosystem which can be easily damaged but can be recovered after some time if damaging effect stops will be having ____________________
a) High stability and high resilience
b) High stability and low resilience
c) Low stability and low resilience
d) Low stability and high resilience
Which ecosystem produce the highest annual net primary productivity?
Tropical evergreen forest
Tropical rain forest
Tropical deciduous forest
Temperate evergreen forest
____________is the term used to describe the variety of life found on Earth and all of the natural processes.
Biodiversity
Ecosystem
Biosphere
Ecology
Which of the following is not the value of biodiversity?
a) Social use
b) Aesthetical use
c) Environmental use
d) Moral
The biodiversity contained in the ecosystem provides forest dwellers with all their daily needs is______use value.
a) Ethical and Moral
b) Consumptive
c) Aesthetical
d) Social
The initiative of biodiversity assessment focuses on which ecosystem types:
Forest
wetland
Marine
All of the above
Which of the following is not a Causes of biodiversity losses?
a) Over exploitation
b) Eco-friendly
c) Co-extinction
d) Habitat loss and fragmentation
marketable products such as animal skins, ivory, medicinal plants, honey, etc comes under_______.
a) Productive value
b) Consumptive value
c) Aesthetic value
d) Social value
_______called the 'lungs of the planet'.
Sahyadry rain forest
Kankan rain forest
Amazon rain forest
South Africa rain forest
Which leads to over- exploitation of natural resources?
a) Greed
b) Eco-friendly
c) Need
d) All of the above
Which of the following is not an Important hot spots in India?
a) Himalayan
b)Western ghat
c) Indo-Berma
d) Central ghat
What flows through the ecosystem while matter cycles within them?
Energy
Force
Pressure
wind
The process in which green plants and few organisms use sunlight to synthesize nutrients is known__________
Chemosynthesis
Photosynthesis
Food chain
Food web
Which type of ecosystem accounts for most of the net primary productivity on earth even though it has a low average net primary productivity?
a) Tropical rain forest
b) desert
c) Tropical evergreen forest
d) Ocean
What makes plant producers?
a) Plants produce their own food
b) Plants depend on other organisms for food
c) Plants are decomposers
d) Plants do not require any energy
Into how many areas the energy that is received by organisms during energy transfer is converted?
a) One
b) Two
c) Three
d) Four
The area to which a species is biologically adapted to live is known as--------------
a) Niche
b) Habitat
c) Succession
d) All of the above
A set of organisms that resemble one another in appearance and behaviour is called a --------------
a) Exons
b) Prions
c) Species
d) None of the above
Habitat of Dog Fish is
a) River
b) Pond
c) Lake
d) Sea
The destruction of habitat of plants and animals is called
a) endemism
b) endangered species
c) habitant loss
d) flood
Each organism in an ecosystem is at a specific feeding stage called as the ----
a) Climax level
b) Producer level
c) Trophic level
d) Consumptive level
Zoos are examples for
a) insitu conservation
b) in vivo conservation
c) exsitu conservation
d) exvivo conservation
Study of inter-relationship between organisms and their environment is
a) Ecology
b) Ecosystem
c) Phytogeography
d) Ethology
How is the atmosphere, hydrosphere and lithosphere connected ?
a) Hydrological cycle
b) Nitrogen cycle
c) Oxygen cycle
d) Carbon cycle
An ecosystem consist of
a) Green plants and animals
b) Green plants and decomposers
c) Producers and consumers
d) Green plants, animals, decomposers and abiotic environment
An ecosystem gradually merges with an adjoining one through a transitional zone called the ---------
a) ecological niche
b) ecological footprint
c) ecotone
d) Biodiversity loss
Driving force in an ecosystem is
a)Plants
b) Producers
c) Solar energy
d) Biomass energy
Which of the following is a possible producer in an ecosystem?
a) Plants
b) Animals
c) Human
d) Fish
A trophic level refers to:
a) Area in the tropics
b) An organism’s portion in a food chain
c) An organism’s position in an ecosystem
d) An organism’s position in a biome
Levels of biodiversity include all but not one:
a) Genetics
b) Species
c) Population
d) Ecosystem
Which ecological pyramid is always upright?
a) Pyramid of number
b) Pyramid of biomass
c) Pyramid of energy
d) Pyramid of number and biomass
The type of diversity including all the different kinds of living things found in a certain habitat is called as:
a) Species diversity
b) Genetic diversity
c) Ecosystem diversity
d) Population diversity
Conservation of biodiversity outside the natural habitat is called as:
a) Ex-situ
b) In-situ
c) Conservation
d) In-vivo
An ecosystem may not undergo changes because:
a) It is in a state of homeostasis
b) It has plants and animals both
c) It gets solar energy continuously
d) The decomposers are present in it
The primary producers in a forest ecosystem are:
a) Chlorophyll containing trees and plants
b) Herbivores
c) Carnivores
d) Bacteria and other micro-organism
Energy flow in an ecosystem is always:
a) Unidirectional
b) Cyclic
c) Reversible
d) Multi-directional
