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