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