Advertisements
Advertisements
प्रश्न
Observe the following images and answer the questions.
- Which evolutionary evidences are indicated in the given picture?
- How are they formed?
- Which method is used to measure their age or their time?
Advertisements
उत्तर
- The given pictures indicate paleontological evidences of evolution.
- 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.
- Carbon dating is a method used to measure the age of fossils.
APPEARS IN
संबंधित प्रश्न
Write the similarity between the wing of a butterfly and the wing of a bat. What do you infer from the above with reference to evolution?
If you are asked to select a group of two vegetables, out of the following, having homologous structures which one would you select?
(a) Carrot and radish
(b) Potato and sweet potato
(c) Potato and tomato
(d) Lady finger and potato
Which of the following is a correct set of homologous organs?
(a) Forelimbs of frog, bird and lizard
(b) Spine of cactus and thorn of bougainvillea
(c) Wings of bat and wings of butterfly
(d) Wings of a bird and wings of a bat
Enlist any four sequential evolutionary names of human ancestors.
Explain the evolution of giraffe's neck according to Lamarck's theory of evolution.
The organs which perform different functions but have the same basic structure are known as :
(a) homologous organs
(b) analogous organs
(c) homolytic organs
(d) analytic organs
The organs which perform similar functions but have different basic structure are called :
(a) asymmetric organs
(b) analogous organs
(c) homologous organs
(d) homophonic organs
You have potato, carrot, radish, sweet potato, tomato and ginger bought from the market in your jute bag. Identify two vegetables to represent the correct homologous structures.
(A) Potato and tomato
(B) Carrot and tomato
(C) Potato and sweet potato
(D) Carrot and radish
Very short answer question:
What is vestigeal organ?
______ is a vestigial organ in human beings.
Find an odd one out.
Give scientific reason.
Peripatus is said to be the connecting link between Annelida and Arthropoda.
Homologous organs and vestigial organs are examples of ______ type of evidence in evolution.
Study of fossils is ______.
Which of the following is used as an atmospheric pollution indicator?
Write avian characters of Archaeopteryx.
Industrial melanism was highlighted by ______.
Give one example of homologous organs found in plants.
Define Palaeontology.
