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