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प्रश्न
Short answer question.
Give the significance of fossils.
उत्तर
1. Fossils are the dead remains of plants and animals that lived in past in various geological layers.
2. The study of fossils provides the most convincing and direct evidence of evolution.
3. Study of fossils tells us that life forms were not the same millions of years ago (mya).
4. The geological time's scale is based on fossil records.
5. From the fossil records we can trace the complete evolutionary history of animals.
6. Study of fossils is an important aspect of evolution since it can be used in paleontology and anthropology for determining age of the fossils and deducing information about their ancestors.
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संबंधित प्रश्न
Give two examples of vestigial organs in human beings and plants.
Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :
Homologous organs
Differentiate between analogy and homology giving one example each of plant and animal respectively.
Four students A, B, C and D reported the following set of organs to be homologous. Who is correct ?
(A) Wings of a bat and a butterfly
(B) Wings of a pigeon and a bat
(C) Wings of a pigeon and a butterfly
(D) Forelimbs of cow, a duck and a lizard
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
I am a connecting link between reptiles and mammals. Who am I?
Define the evidence of evolution shown in the figure.
How do you differentiate homologous organs from analogous organs?
Select the CORRECT set of homologous organs.
The bones of forelimbs of whale, bat, cheetah and man are similar in structure, because ______.
