Question

3) Which evolutionary evidences are indicated in the given picture b) How are they formed? c) Which method is used to measure their age or their time? d) Explain Lamarck's principle​

Answer 1

Answer:

a) It is A Evidence from Palaentology

b) Large number of organisms get buried due to disasters like flood, earthquake, volcano, etc. Remnants and impressions of such organisms remain preserved underground and form fossils.

c) The age of the fossil can be calculated by following methods :-

    Simple - Carbon dating

   Other -     Relative Dating

                   Radioactive Dating - Radioactive carbon dating method

                                                     Potassium-Argon method

                                                     Uranium-Lead Method

                                                     ESR (Electron Spin Resonance) method

d) Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.

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