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