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