Origin of life is not possible under present environmental conditions because- (1) Hydrogen is absent (2) Due to presence of oxygen (3) Lack of source of energy (4) Lack of […]
Category: CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Fossil Evidence and Ancient Landmasses: Brazil and Ghana’s Connection to Pangea
Recently reptile fossils of age 200-250 MY have been found in Brazil and Ghana-portion of West Africa. This suggest that the both places were part of large landmass during that […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Which Were the First Oxygen-Evolving Life Forms? Unveiling the Role of Cyanobacteria in Earth’s History
The first oxygen evolving forms among the following were- (1) Anaerobic autotrophs (2) Cyanobacteria (3) Protists (4) Algae The Early Earth: A World Without Oxygen For the first two billion […]
CSIR NET Life Science Previous Year Questions and Solution on EVOLUTION AND BEHAVIOUR
Cenozoic Era: The Disappearance of Dinosaurs and the Rise of Mammals
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 […]
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 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) […]
