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Environment and Biodiversity Test
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Environment and Biodiversity Test 1
Read Instructions for the test.
Negative marks are -0.33 per wrong answer
Right answer is 1 mark
No time limit but finish in 30 mins
Solution can be found at below chapters:
Test series is based on following chapters.
Environment Chapter 1: Environment
Environment Chapter 2: Pollution And Control
Q1: study of organisms and their interactions with themselves and with their physical environment.
Q2: a functional unit of nature where the living organisms interact with each other and also with surrounding environment is
Q3: Of all the species in the world ____% are animals
Q4: Which is true?
In animals 70% are insects.
India is among the 12 mega biodiversity countries in the world
species diversity decreases as we move from equator towards the poles.
Q5: Which is responsible for higher species in tropical regions
The tropics have remained relatively undisturbed unlike the temperate regions that have seen glaciations.
Tropical environments are less seasonal and more stable.
Constant environments promote niche specialization and species diversity.
Q6: Which is true?
The peninsular plateau in south is made of igneous and metamorphic rocks.
In the North India there is a vast expanse of terrain consisting of sedimentary and metamorphic rocks.
Q7: Which is true?
Biodiversity decreases with increase in altitude.
Biodiversity Hotspots or mega diversity reserves are place for in-situ conservation of most threatened
Q8: The criteria for a hotspot as said by Prof. Norman Myers are:
The area should support >1500 endemic species
It must have lost over 70% of its original habitat.
Q9: The variations in temperature of the place along with the variations in the precipitation have created ___ on earth
Q10: ___ is a zone of junction between two or more ecosystems
Q11: sum of activities and relationships of a species by which it uses all resources in its habitat for survival and reproduction is called
Q12: A large ecosystem with its own distinct type of vegetation and animal life is called _
Q13: Which is true?
No two species can have the same niche.
Habitats of organisms comprise of biotic and abiotic components like temperature, water, light and soil.
Q14: Which is true?
Eurythermal organisms tolerate vast range of temperatures
Stenothermal tolerate a narrow range of temperature.
Q15: What is true?
Euryhaline can tolerate vast range of salinity
stenohaline can't tolerate vast range of salinity
Q16: Which is true?
40% of all known fish species are found in the freshwater ecosystem.
Aquatic animals face problem due to pH and salt concentration of water.
Q17: Thermo - regulation and Osmo - regulation is done by
Q18: Small animals are more preferable towards conformation than regulation as
they lose heat fast as their body area is less compared to their volume.
more energy will be lost in regulating.
Q19: Desert plants use ___ pathway for photosynthesis.
Q20: Commensalism is
the host isn’t benefited or harmed but the other species derives benefit
both the associating species benefit
one species is harmed but the other is unaffected.
Q21:one species is harmed but the other is unaffected is
Q22: Which is true?
Biodiversity in marine ecosystem is higher than the terrestrial ecosystem
Maximum diversity in marine organisms is seen in the tidal zone near the shore.
Q23: national parks, wildlife sanctuaries, biosphere reserves. are examples of ___ conservation
Q24: Process by which communities of plants and animals species in an area are changed or replaced into another over a period of time is known as
Q25:zoological parks, cryo-preservation, botanical gardens, gene banks, conservation at molecular level are examples of
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