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