| Voluntary Actions | Involuntary Actions |
|---|---|
| 1. Will. They are under control of the will. | They are performed without consulting the will. |
| 2. Muscles. The actions are performed with the help of striated muscles. | The actions are performed with the help of smooth muscles. |
| 3. Activities. They are connected with the functioning of external organs. | They are connected with the functioning of internal organs. |
For two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below: a. Both A and R are true, and R is correct explanation of the assertion. b. Both A and R are true, but R is not the correct explanation of the assertion. c. A is true but R is false. d. A is false but R is true. Assertion: ln grasshoppers, females are hetero gametic and males are homo gametic. Reason: ln grasshoppers, male has only one sex chromosome (XO) whereas the female has sex chromosomes (XX).
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In terms of evolution, what is the significance of homology between a human hand and a wing of a bird?
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