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