Multiple Choice Questions (MCQs)
Stratosphere is ________ major layer of Earth's atmosphere.
Each successional stage is called a ________ stage.
Thermosphere Known as ________
Legs have been modified for perching in ________.
There is limited number of feeding or trophic levels in ________.
Who is the father of taxonomy and systematics?
In ________ growth a stationary or stable phase is achieved.
Atmosphere is ________ nitrogen by volume.
Population size ________ above carrying capacity.
In aquatic ecosystem, ________ reacts with the water to form bicarbonate ions.
________ consists of distinct biological communities.
Which of the following bacteria fix atmospheric nitrogen in anaerobic conditions?
According to first law of thermodynamics ________ is neither created nor destroyed in the biosphere.
According to the ________ concept, Evolutionary changes are occuring gradually over millions of years.
________ is the amount of chemical energy as biomass that primary producers create in a given length of time.
In ________ isolation, courtship behaviour patterns of two animals are inappropriate for each other.
Which of the following diseases is caused by sewage water?
Kingdom Protista consists of ________.
Wings have been modified for soaring in ________.
In transpiration plants absorb ________ from the soil.
________ was Father of geology and stratigraphy.
Which microparasites reproduce inside host ________.
________ transfer heat from one place to another by mass motion of a fluid such as water, air or molten rock.
Parapatric speciation occurs in small, local populations, called ________.
Food chain only follows a direct, ________ pathway of one animal at a time.
Which of the following bacteria have a single flagellum at both ends?
In ________ at either limit, one or more essential functions cease.
Second atmosphere formed carbonates that were deposited as ________.
Adult human body contains ________ of water by weight.
Which of the following order is correct?
Who proposed the law of use and disuse?
In crypsis animals habitually press their bodies to the ________.
Which of the following proteins are useful for looking at relationships among more closely related animals?
In aposematism advertisement of signals includes ________.
Mercury bioaccumulates in the ________ of top predators of the open ocean.
They release digestive enzymes by their hyphae
Which of the following bacteria have tuft of flagella at one end?
The rate that new organic matter is made by means of individual growth and reproduction in all the herbivores is ________.
It represent tiny portion of the complexity of real ecosystems.
Cynaobacteria is the example of ________.
The atmosphere provides protective shield against radiation and ________.
________ competition occurs between two species to use the same resources.
Animals undergo ________ in extended period of drying.
Conditions in the reproductive ________ of a female may not support the sperm of male.
Removal of apex predator in environment called ________.
Existence of shared ancestry between a pair of structures, or genes, in different taxa occur in ________.
Orientation towards a factor called ________.
Layers of atmosphere increases with ________ in some regions.
In ________ wings have been modified for hovering.
In ________ legs have been modified for swimming.
In Nitrogen cycle Immobilization is the opposite of ________.
Volcanic eruptions release ________ into the atmosphere.
Transparency in interspecific interactions showed by ________.
Bacteria use ________ in conjugation for exchange of genetic material.
Different colors of Mullerian Mimicry depend on ________ and visibility.
Variability in Net Primary Productivity of Wetlands and tropical rain forests is ________.
Photosynthesizing bacteria that are related to the chloroplasts of eukaryotic plants and algae are called ________.
It occurs when uptake from the water is greater than excretion.
Which of the following is not the characteristic of Eutrophic lake?
Which of the following are also called blue green algae?
One of the major disruptions is loss of habitat in ________.
It has two phases.
Each ________ trophic level has its own secondary productivity.
If reproductive isolation is due to reproducing at different times, it is ________.
In interspecific interactions counter-illumination eliminates ________.
New genetic material is generated during ________ evolution.
________ are strongly affected by light pollution.
________ speciation occurs within a single population.
It occurs in large animals.
________ is an early freshwater reptile, found as fossils from the Early Permian Period.
Loss of ________ percent energy occurs from one level to next.
The ________ is a energy intensive process.
Files and ________ have outlandish proboscises.
Animals use ________ to make organic molecules.
They obtain energy by means of inorganic oxidation reactions
Which of the following has low algal growth?
Proteolysis releases nitrogen and ________.
Cell wall of bacteria consists of ________.
The ________ is key element in survival of life.
In pyramid of ________ one trophic level has greater biomass than the one below it.
In homeostasis ________ is a critical factor.
________ brings all the toxic chemicals in air back into surface runoff.
________ occurs in small, local populations, called demes which are not completely isolated from each other.
According to Endosymbiotic Theory, ________ evolved from endocytosis of aerobic bacteria.
This speciation occurs within a single population.
Cascade effect leads to increase in ________ species.
In which of the following organism logistic growth occurs.
Natural environment where a species/organism lives is called ________.
Thermoacidophiles live in superheated water with temperature ________.
In Mesosphere lower boundary is ________ to 65 kilometres.
A specific functional role and place of an organism called its ________.
Short protein appendages smaller than flagella is called ________.
Weismann made the important distinction between ________ cells and ________ cells.
K-selected species are typically ________ competitors in such crowded habitats.
Number of Pilli in a bacterial cell is ________.
Which of the following is NOT the external factor of Ecosystem?
There are ________ types of herbivory depending upon different feeding habits.
________ enables animals to survive periods of reduced food availability.
Which of the following limiting factor cannot regulate population at constant level?
The salt concentration in oceans is roughly ________.
Land fill is the example of ________.
Members of the domain archaea, don't have ________ in their cell wall.
Approximately ________ tons of sodium chloride is extracted from the Great Salt Lake.
Gregor Mendel proposed the laws of genetics in ________.
Likely sea level rise during the 21st century is ________.
They can breakdown carbohydrate anaerobically also.
Thermoacidophiles live in the environment with ________ pH.
According to ________ model of evolution "species do not change significantly over millions of years".
________ pyramids are usually, but not always, upright.
Evolution of 14 species of finches from the original seed eater finches from mainland is the example of ________ speciation.
The theory of ________ states that evolution occurs primarily through short bursts of intense speciation, followed by lengthy periods of stasis.
Third Atmosphere is the constant rearrangement of ________.
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