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प्रश्न
Complete the following diagram:
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उत्तर
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संबंधित प्रश्न
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.
What are homologous organs?
The forelimbs of a frog, a bird and a man show the same basic design (or basic structure) of bones. What name is given to such organs?
Name two animals having homologous organs and two having analogous organs. Name these organs.
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
Write the names of those animals in whom some vestigial organs in human body are functioning.
The most common types of fossils are ------------------------.
______ is a vestigial organ in human beings.
Find an odd one out.
The decaying process of C-14 occurs continuously in dead organisms only.
Give scientific reason.
Duck-billed platypus shows relationship with mammals.
Observe the given images and answer the following questions.
- Which evolutionary evidence does it indicate?
- What does it prove?
- State another example of evolutionary evidence.
Explain any five types of evidence that support the theory of evolution.
The presence of gill slits, in the embryos of all vertebrates, supports the theory of ______.
You have studied the story of Peppermoths in England. Had the industries been removed, what impact could it have had on the moth population? Discuss.
Find odd one out:
Write a note on the significance of Palaeontology.
Industrial melanism was highlighted by ______.
