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