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