Results
#1. Which of the following Scientists is associated with the theory of natural Selection during the evolution of life?
The correct answer is:b)Darwin
The theory of natural selection, a fundamental mechanism of evolution, was independently developed by both Charles Darwin and Alfred Russel Wallace. Darwin’s extensive observations during his voyage on the HMS Beagle, particularly in the Galápagos Islands, led him to propose that species evolve over time through the differential survival and reproduction of individuals with advantageous traits. He introduced this theory in his seminal work, On the Origin of Species, published in 1859.
Alfred Russel Wallace, a contemporary of Darwin, arrived at similar conclusions regarding natural selection based on his studies of species distribution in the Malay Archipelago. In 1858, Wallace sent Darwin a manuscript outlining his ideas on natural selection, which prompted the joint presentation of their findings to the Linnean Society of London that same year.
Explanation of Other Options:
- A. Gregor Mendel: Known as the father of genetics, Mendel’s experiments with pea plants uncovered the fundamental laws of inheritance, laying the groundwork for the field of genetics.
- C. J.B.S. Haldane: A British geneticist and evolutionary biologist, Haldane made significant contributions to the modern synthesis of evolutionary biology, particularly in the mathematical modeling of natural selection.
D. Stanley Miller: An American chemist, Miller is renowned for his experiments on the origin of life, notably the Miller-Urey experiment, which demonstrated that organic compounds could be synthesized from inorganic precursors under conditions thought to resemble those of early Earth.
#2. In which of the following conditions bio- gas is produced?
#3. Why do ventricles have thicker muscular walls than atria?
#4. Which ofthe following is not reflex action?
#5. Which part of the brain maintains posture and equilibrium of the body?
#6. What is the colour of the Litmus solution when it is neither acidic nor basic?
#7. Which of the following statements is not correct?
#8. What does ‘p’ represent in pH?
#9. Which of the following does not represent refractive defect of vision?
#10. During dispersion of white light by glass prism, which ofthe following light the spectrum bends the most?
