Fossils
Fossils
Fossils:
These are the dead and decayed remains of organisms from the geological past, i.e. preserved traces of living organisms that lived millions of years ago. It is not always necessary that every part of a dead organism decomposes, e.g. a dead insect caught in a hot mud. The mud does not allow the insect to decompose quickly. On the contrary, the mud will eventually harden and retain the impression of the body parts of the insect. This provides us evidence about the presence of insect and also tells us about the structure of the insect. Imprints of leaves, stems, footprints, skin impressions and other traces provide indirect evidences of past life. In other words, fossils record helps us to analyse the connections between the Earth’s and life’s evolution. By this, we can reconstruct the patterns and trends that existed in the history of life. Science of fossils is known as paleontology.
Kinds of Fossils:
Fossils are of various kinds like tree trunk fossils, invertebrate fossils (Ammonite), fish fossils (Knightia) and dinosaur skull fossils (Rajasaurus recently found in Narmada valley) depending upon their differences in appearance and detail and mode of preservation. A fossil Archaeopteryx is the connecting link between birds and reptiles. This is because; it has feathered wings and beak like those of birds, but teeth and tail like those of reptiles. So, it is considered that birds have evolved from reptiles. Thus, fossils provide evidence that living beings (plants and animals) that exist today have originated from primitive organisms through the process of organic evolution.
Fossils are used for _________________. | |||
| Right Option : D | |||
| View Explanation |
Age of Earth is about _________________ | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct ? (a) A fossil archaeopteryx is the connecting link between birds and reptiles. (b) Fossils are used to determine the history of plants and animals. (c) Science of fossils is known as paleontology. | |||
| Right Option : D | |||
| View Explanation |
Students / Parents Reviews [10]
My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
