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