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Name the naturalist who had also come to...

Name the naturalist who had also come to similar conclusion around the same time what Darwin worked out?

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Alfred Russel Wallace
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In the Rutherford’s nuclear model of the atom, the nucleus (radius about 10^(–15) m) is analogous to the sun about which the electron move in orbit (radius ~~ 10^(–10) m) like the earth orbits around the sun. If the dimensions of the solar system had the same proportions as those of the atom, would the earth be closer to or farther away from the sun than actually it is? The radius of earth’s orbit is about 1.5 xx 10^(11) m. The radius of sun is taken as 7 xx 10^8 m .

Comprehension The first demonstration of the stereochemistry of the S_(N^2) reaction was carried out in 1934 by Prof. E.D Hughes and his colleagues at the University of London. They allowed (R) -2- iodooctane to react with radioactive iodide ion (""^(**)I-) The rate of substitution (rate constant K_5 ) was determined by measuring the rate of incorporation of radioactivity into the alkyl halide. The rate of loss of optical acitivity from the alkyl halide (rate constant K_0 ) was also determined under the same conditions: What ratio K_0//K_s is predicted for each of the following stereochemical scenarios : For inversion reaction :

Comprehension The first demonstration of the stereochemistry of the S_(N^2) reaction was carried out in 1934 by Prof. E.D Hughes and his colleagues at the University of London. They allowed (R) -2- iodooctane to react with radioactive iodide ion (""^(**)I-) The rate of substitution (rate constant K_5 ) was determined by measuring the rate of incorporation of radioactivity into the alkyl halide. The rate of loss of optical acitivity from the alkyl halide (rate constant K_0 ) was also determined under the same conditions: What ratio K_0//K_s is predicted for each of the following stereochemical scenarios : For equal amounts of both retention and inversion ?

OSWAAL PUBLICATION-EVOLUTION-TOPIC :2 EVOLUIONARY THEORIES .ITS MECHANISM AND EVOLUTION OF MAN( VERY SHORT ANSWER TYPE TYPE QUESTIONS )
  1. By what latin name the first human-like being, the homonid was known?

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  2. When we say "survival of the fittest", does it mean that (a) Those whi...

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  3. Give a 3-word definition of "organic evolution".

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  4. Name the naturalist who had also come to similar conclusion around the...

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  5. What causes speciation according to Huge De Vries?

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  6. Which is the earliest fossil of prehistoric man?

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  7. Name the common ancestor of great apes and man.

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  8. In what respect did Darwin agree with Lamarck?

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  9. Name the theory of evolution given by Lamarck.

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  10. Give the three key factors of the modern concept of evolution.

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  11. In which areas does the dark melanic species of the peppered mouth abo...

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  12. Which period is called the 'age of reptiles'?

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  13. Mention the immediate ancestors of birds and mammals.

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  14. Name three recent eras of geological time.

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  15. Cite one example of dinosaurs.

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  16. In which era the fossils are scanty.

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  17. What is the probable period of origin of cyanobacteria?

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  18. Mention the key concepts about the mechanism of biological evolution/S...

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  19. According to Hardy-Weinberg's principle, the allele frequency of a pop...

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  20. Pick out the ancestral line of Angiosperms from the list given below- ...

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