| 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. |
What are nastic and curvature movements? Give one example of each.
Updated 1/12/2026
(a) Write foil form of DNA. (b) Why are variations essential for the species ? (CCE 2011)
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Name any two abiotic components of an environment.
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Name one sexually transmitted disease each caused by a bacterial infection and viral infection. How can they be prevented?
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List any two factors that could lead to speciation.
Updated 1/12/2026
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