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