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