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