Coenozoic era is characterized by- (1) Disappearance of reptiles and adaptive radiation in aves (2) Disappearance of Dinosours and adaptive radiation in aves (3) Disappearance of Dinosours and adaptive radiation […]
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CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Why Life Cannot Arise from Inorganic Molecules Today: The Role of Oxygen, Ozone, and Modern Earth Conditions
In Present condition origin of life from inorganic molecules is not possible because of- (1) Absence of raw material (2) Presence of molecular oxygen (3) Low enthalpy (4) Presence of […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
The Mesozoic Era: The Age of Reptiles in Earth’s Geological Timeline
In geological time scale, the Era of reptiles is- (1) Paleozoic (2) Mesozoic (3) Holozoic (4) Proterozoic Introduction The history of life on Earth is divided into distinct eras, each […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
The Jurassic Period: When Did It Occur in Earth’s History?
The period of Jurassic in million years ago is- (1) 310-250 (2) 250-200 (3) 200-140 (4) 140-100 Introduction The Jurassic Period is one of the most iconic intervals in Earth’s […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Matching Trajectories of Global Environmental Change Drivers: How to Link Trends with Key Causes
The graph below depicts trajectories (A to D) of some of the major drivers of global environmental changes (i to iv) that are mentioned alongside. Match the trajectories with the […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Geological Time Scale Hierarchy: Understanding Eons, Eras, Periods, and Epochs
The correct hierarchy of geological times is: (1) eon > era > period > epoch (2) period > era > epoch (3) epoch > period > era > eon (4) […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Why Is Ozone Depletion More Severe Over the South Pole? Understanding the Role of the Polar Vortex, Stratospheric Temperatures, and Polar Stratospheric Clouds
The Montreal Protocol and its subsequent amendments have resulted in reduced ozone depletion. It is also observed that ozone depletion over the South Pole is much more severe than over […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Matching International Environmental Agreements to Their Focus Areas: A Comprehensive Guide
Following table gives a list of international environmental agreements and areas covered. Which of the following is correct combination? (1) A – (i), B – (ii), C – (iv), D […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Mapping Organic Matter Sources Along a Stream-to-River Continuum: How Allochthonous and Autochthonous Inputs Shape Aquatic Ecosystems
The diagram below depicts the generalizeddistributional curves (A to D) of allochthonous organic matter and autochthonous production by different autotrophic groups, as a stream transitions to a river. The following are sources […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Understanding Lake Eutrophication: How Key Parameters Change Over Time and Their Ecological Significance
In a lake subjected to progressive eutrophication,temporal changes in the magnitude of selectedparameters (A, B, C, D) are shown in the graph The parameters A, B, C, D are (1) […]
