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