CBSE Class 12 Biomes And Ecology — practice questions
42 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 12 Biomes And Ecology in the app →Which of these is a terrestrial ecosystem?Which is a man-made ecosystem?The basic energy input to any ecosystem is:Green plants in an ecosystem are called:Animals that feed directly on plants are:Producers belong to which trophic level?Energy movement through trophic levels is:The rate of biomass production is called:GPP minus respiration losses equals:The rate at which consumers form new organic matter is:The annual net primary productivity of the biosphere is about:Raw material for decomposition is called:Which is NOT a step of decomposition?Plants capture what share of photosynthetically active radiation?Decomposition is slower when detritus is rich in:Which conditions favour decomposition?The mass of living material at a trophic level is the:The pyramid of biomass in the sea is generally:Which ecological pyramid can never be inverted?Which group is left out of ecological pyramids?Ecology studies organisms together with their environment that is:Ecology deals with how many levels of biological organisation?The largest of the four ecological levels is the:Ecology at the level of the organism is essentially:Seasons arise from the earth's revolution and the tilt of its:Precipitation counted in ecology includes rain and:Temperature and precipitation together account for the formation of:Which of these is named as a major biome?Variations within a biome lead to a wide variety of:Temperature matters to life because it affects the kinetics of:Organisms that thrive over a wide temperature range are:Organisms restricted to a narrow temperature range are:Thermal tolerance largely determines a species' distribution that is:Snow leopards are not found in the forests of:Tuna fish are rarely caught beyond latitudes that are:Animals able to keep a constant internal state are called:The success of mammals is credited to holding constant their:The constant human body temperature is about:In summer heat the human body cools itself by:Sweating cools the body by a process compared to a:In winter cold the human body raises heat by:Animals whose internal state changes with the surroundings are: