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प्रश्न
Pick the odd man out:
विकल्प
duckbill platypus
pomfret
lungfish
peripatus
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उत्तर
pomfret
Explanation:
In Peripatus, characters like segmented body, thin cuticle, and parapodia-like organs are present. Similarly, duck-billed platypus lays eggs like reptiles but shows relationships with mammals too due to the presence of mammary glands and hairs. Lungfish perform respiration with lungs, irrespective of being fish. These examples indicate that mammals are evolved from reptiles and amphibians from fish.
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संबंधित प्रश्न
Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :
Homologous organs
Which of the following pairs of two vegetables represent the correct homologous structures?
(A) Sweet potato and potato
(B) Sweet potato and tomato
(C) Carrot and potato
(D) Radish and carrot
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?
Differentiate between analogy and homology giving one example each of plant and animal respectively.
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
Can the wing of a butterfly and the wing of a bat be considered homologous organs? Why or why not?
Explain the terms analogous and homologous organs with examples.
Explain the evolution of giraffe's neck according to Lamarck's theory of evolution.
How do homologous organs help in providing evidence for organic evolution?
Some dinosaurs had feathers although they could not fly birds have feathers that help them to fly. In the context of evolution, this means that ______
One pair of organs in the following animals are not homologous. This is :
(a) forelimbs in humans and lizard
(b) forelimbs in lizard and frog
(c) wings in butterfly and bat
(d) wings in bat and bird
Identify the following pairs as homologous and analogous organs:
(i) Sweet potato and potato
(ii) Eye of octopus and eye of mammals
(iii) Thorns of Bougainvillaea and tendrils of Cucurbits
(iv) Fore limbs of bat and whale
Explain with suitable examples importance of anatomical evidence in evolution.
“Appearance of melanised moths post-industrialisation in England is a classic example of evolution by natural selection.” Explain.
Find an odd one out.
Define the evidence of evolution shown in the figure.
What is carbon dating?
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 degenerated and non-functional organs found in an organism are called ______.
A human hand, a front leg of a cat, a front flipper of a whale and a bat’s wing look dissimilar and adapted for different functions. What is the name given to these organs?
How do you differentiate homologous organs from analogous organs?
Select vestigial organs from the following.
Select the correct statement.
The fossil remains of Archaeopteryx is a connecting link between ______
Evolutionary convergence is the development of:
Which is not a vestigial organ in a man?
Which of the following is used as an atmospheric pollution indicator?
The bones of forelimbs of whale, bat, cheetah and man are similar in structure, because ______.
Fossils are generally found in ______.
How do we compute the age of a rock?
Write down the difference between homologous and analogous organs.
Explain natural selection with the example of industrial melanism.
Evolutionary convergence is the development of a ______.
Write a note on the significance of Palaeontology.
