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