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प्रश्न
Study the different conclusions drawn by students of a class on the basis of observations of preserved/available specimens of plants and animals.
I. Potato and sweet potato are analogous organs in plants.
II. Wings of insects and wings of birds are homologous organs in animals.
III. Wings of insects and wings of bats are analogous organs in animals.
IV. Thorns of citrus and tendrils of cucurbita are analogous organs in plants.
The correct conclusions are:
(A) I, and II
(B) II and IV
(C) I and III
(D) III and IV
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उत्तर
(C)
Analogous organs are those which do not share a common ancestry but perform common function.
Hence, wings of insects and wings of bats are analogous organs in animals.
Hence, Potato and sweet potato are analogous organs in plants.
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संबंधित प्रश्न
Write the next homologue of the following: C4H6
Fill in the following blank with suitable word:
Ethene and ethyne are examples of ..... hydrocarbons.
Give the molecular formula of one homologue of each of the following:
C2H6
Give the abbreviated formula of the third member of the alcohol.
While going in an increasing order there is a rise in the molecular mass of the consecutive members of the homologous series by _______.
The general molecular formula for the homologous series of alkynes is _______.
Find the odd one out and give its explanation.
Name the following organic compound:
The first homologue whose general formula is CnH2n.
Consider the following molecular formulae of carbon compounds:
(i) CH3COOH (ii) CH3OH (iii) C2H6 (iv) C3H4 (v) C4H8
- Which one of these compounds belongs to homologous series of alcohols?
- Identify the compound having triple bond between carbon-carbon atoms.
- Write the molecular formula of the first member of the homologous series to which CH3COOH belongs.
- Write the general formula of the series to which the compound C4H8 belongs.
Name the third homologue of alcohols.
