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प्रश्न
What are homologous organs?
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उत्तर १
Homologous organs are different in appearance and perform different functions but built on the same basic pattern and have a common origin.
उत्तर २
Homologous organs are those organs, which are structurally similar but perform different functions.
संबंधित प्रश्न
(a) Select the homologous structures from the combinations given below:
(i) Forelimbs of whales and bats
(ii) Tuber of potato and sweet potato
(iii) Eyes of octopus and mammals
(iv) Thorns of Bougainvillea and tendrils of Cucurbita
(b) State the kind of evolution they represent.
The presence of which of the following types of organs in two animals indicates that they are not derived from a common ancestor?
(a) homologous organs
(b) excretory organs
(c) analogous organs
(d) reproductive organs
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
Vestigial organ ______ present in human body is proof of evolution.
Long answer question.
Would you consider wings of butterfly and bat as homologous or analogous and why?
Complete the flowchart.
Explain any five types of evidence that support the theory of evolution.
Select the correct statement.
What were the characteristics of life forms that had been fossilised?
Write avian characters of Archaeopteryx.
