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प्रश्न
Give scientific reason.
Duck-billed platypus shows relationship with mammals.
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उत्तर
- The duck-billed platypus is a connecting link between mammals and reptiles.
- It shows similarity with mammals due to the presence of mammary glands and hairs.
Therefore, Duck-billed platypus shows relationship with mammals.
संबंधित प्रश्न
Give two examples of vestigial organs in human beings and plants.
Given below is the list of vegetables available in the market. Select from these the two vegetables having homologous structures:
Potato, sweet potato, ginger, radish, tomato, carrot, okra (Lady’s finger)
(A) Potato and sweet potato
(B) Radish and carrot
(C) Okra and sweet potato
(D) Potato and tomato
What are homologous 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
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
Read the following statement and justify the same in your own words with the help of a suitable example.
There is evidence of foetal science among chordates.
Write the names of those animals in whom some vestigial organs in human body are functioning.
Complete the following chart:
Explain any three molecular (genetic) evidences in favour of organic evolution.
Explain the importance of Anatomical evidences with examples.
Find an odd one out.
Find an odd one out.
Enlist the evidences of evolution.
Which evidence of evolution is shown in the given picture? Explain the importance of this evidence.
Evolution has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.
Homologous organs are:
Give a scientific reason.
Morphological evidences suggest that dog, sheep and wolf have a common origin.
Explain natural selection with the example of industrial melanism.
Give one example of homologous organs found in plants.
