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