25 Questions MCQ Test Science & Technology for UPSC CSE - Test: Origin & Evolution - 1
Test: Origin & Evolution - 1 for UPSC 2023 is part of Science & Technology for UPSC CSE preparation. The Test: Origin & Evolution - 1 questions and answers have been
prepared according to the UPSC exam syllabus.The Test: Origin & Evolution - 1 MCQs are made for UPSC 2023 Exam. Find important
definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Origin & Evolution - 1 below.
Solutions of Test: Origin & Evolution - 1 questions in English are available as part of our Science & Technology for UPSC CSE for UPSC & Test: Origin & Evolution - 1 solutions in
Hindi for Science & Technology for UPSC CSE course. Download more important topics, notes, lectures and mock
test series for UPSC Exam by signing up for free. Attempt Test: Origin & Evolution - 1 | 25 questions in 25 minutes | Mock test for UPSC preparation | Free important questions MCQ to study Science & Technology for UPSC CSE for UPSC Exam | Download free PDF with solutions
The doctrine of spontaneous generation was coherently synthesized by Aristotle, who compiled and expanded the work of earlier natural philosophers and the various ancient explanations for the appearance of organisms, and was taken as scientific fact for two millennia.
By 1860, the debate had become so heated that the Paris Academy of Science offered a prize for any experiments that would help resolve this conflict. Louis Pasteur, has published the results of an experiment he did to disproved spontaneous generation in these microscopic organisms.
Theory of special creation of origin of life:-
This theory in biology was proposed by Spanish monk father Sudrez. According to this oldest theory, all the different forms of life that occur today on planet earth, have been created God, the Almighty or some supernatural power.
Modern Theory or Oparin-Haldane Theory of Origin of Life:
According to this theory life originated on early earth through physico-chemical processes of atoms combining to form molecules, molecules in turn reacting to produce inorganic and organic compounds. Organic compounds interacted to produce all types of macromolecules which organised to form the first living system or cells.
According to Oparin, the atmosphere of primitive earth was reducing because the hydrogen atoms were most numerous and most reactive. Large quantities of hydrogen gas, nitrogen gas, carbon dioxide, methane, water vapour, ammonia were present but free oxygen was not present in significant amount. Hence, oxygen was absent during the formation of earth.
The giant nucleoprotein molecules were formed by the union of nucleic acid and protein molecules. These nucleoprotein particles were described as free living genes. Nucleoproteins gave most probably the first sign of life.
Moon is a natural satellite of earth but life on the moon is not possible as on the earth because of many reasons. Firstly, there is no water on the moon, which is the first and foremost requirement for the life. Life first started on the earth because of water and if no water we can imagine no life.
Divergent evolution is the process whereby groups from the same common ancestor evolve and accumulate differences, resulting in the formation of new species.
Divergent evolution may occur as a response to changes in abiotic factors, such as a change in environmental conditions, or when a new niche becomes available. Alternatively, divergent evolution may take place in response to changes in biotic factors, such as increased or decreased pressure from competition or predation.
Wings of butterfly and wings of a bird , they both are analogus organs . Wings of butterfly does not have hollow bones wheres birds have hollow bones attached to its feathers and they are used from protecting it from cold also.
The living animals which possess some characters of two different groups of animals are called connecting link. Peripatus is a primitive arthropod having joined paired legs, compound eyes and tracheas like other arthropods but also displays certain annelidan charachtersticks, such as worm - like segmented body.
Proterospongia is considered as a connecting link between protozoa and the porifera because it has both protozoan and poriferan characters like it is a colonial protozoan and its cells are similar to collar cells of sponges.
"Ontogeny recapitulates phylogeny" is a catchy phrase coined by Ernst Haeckel, a 19th century German biologist and philosopher to mean that the development of an organism (ontogeny) expresses all the intermediate forms of its ancestors throughout evolution (phylogeny). His theory was later proved wrong, but the catch phrase remains.
The study of human evolution involves several scientific disciplines, including physical anthropology, primatology, archaeology, paleontology, neurobiology, ethology, linguistics, evolutionarypsychology, embryology and genetics.
The clear advantage of bipedalism was the possibility for ancient hominin species to use their hands. With the evolution of bipedalism, this special advantage was evolved only by the primates. This advantage offered a benefit that overcame the fatal disadvantage of slow speed.
Information about Test: Origin & Evolution - 1 Page
In this test you can find the Exam questions for Test: Origin & Evolution - 1 solved & explained in the simplest way possible.
Besides giving Questions and answers for Test: Origin & Evolution - 1, EduRev gives you an ample number of Online tests for practice
Find all the important questions for Origin & Evolution - 1 at EduRev.Get fully prepared for Origin & Evolution - 1 with EduRev's comprehensive question bank and test resources.
Our platform offers a diverse range of question papers covering various topics within the Origin & Evolution - 1 syllabus.
Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered.
The questions are designed to challenge you and help you gain confidence in tackling the actual exam.
Maximize your chances of success by utilizing EduRev's extensive collection of Origin & Evolution - 1 resources.
Origin & Evolution - 1 MCQs with Answers
Prepare for the Origin & Evolution - 1 within the UPSC exam with comprehensive MCQs and answers at EduRev.
Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus.
Access the best books, study materials, and notes curated by toppers to enhance your preparation.
Stay updated with the exam date and receive expert preparation tips and paper analysis.
Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.
Online Tests for Origin & Evolution - 1 Science & Technology for UPSC CSE
Practice with a wide array of question papers that follow the exam pattern and syllabus.
Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement.
Access detailed solutions and explanations for each test to enhance your understanding of concepts.
With EduRev's Online Tests, you can build confidence, boost your performance, and ace Origin & Evolution - 1 with ease.
Join thousands of successful students who have benefited from our trusted online resources.