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प्रश्न
Write a short note:
Embryological evidences
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उत्तर
- Embryological evidences arise from comparative study of embryological developmental stages of various vertebrates.
- Embryos of different vertebrates appear similar during the initial stages of development and these similarities gradually decrease as the embryo develops.
- Embryology can be used as evidence of evolution as similarities in initial stages of development indicate common origin of the animals.
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संबंधित प्रश्न
Give two examples of vestigial organs in human beings and plants.
Differentiate between homology and analogy. Give one example of each.
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
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
Attempt giving a clear definition of the term species.
Differentiate between analogous and homologous structures.
With the help of diagrams, describe emasculation and bagging.
Draw a labelled diagram of T.S. of a leaf showing Kranz anatomy.
Long answer question.
Would you consider wings of butterfly and bat as homologous or analogous and why?
Which evidence of evolution is shown in the given picture? Explain the importance of this evidence.
Why do all the gametes formed in human females have an X chromosome?
Study of fossils is ______.
What are we referring to? When we say 'simple organisms' or 'complex organisms'.
How do we compute the age of a fossil?
Complete the following diagram:
What is the function of the appendix of our digestive system?
Find odd one out:
