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