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