Question
Dormancy
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| Column A (Mechanism) | Column B (Type of pollination) |
| (1) Geitonogamy | (a) Thea |
| (2) Herkogamy | (b) Gloriosa |
| (3) Self-sterility | (c) Cucurbita |
| (4) Protogyny | (d) Calotropis |
| Application of stimulus on a resting nerve |
| ⇓ |
| Permeability of membrane changes |
| ⇓ |
| ______________________________ |
| ⇓ |
| Positive ions inside axon increases |
| ⇓ |
| ________________________________ |
| ⇓ |
| Polarity reverses and depolarisation takes place |
| ⇓ |
| Repolarisation - potassium gates open |
| ⇓ |
| ______________________________ |
| ⇓ |
| ______________________________ |
| ⇓ |
| Axoplasm becomes negatively charged and ECF becomes positive |
| Organism | Habitat | Respiratory surface/organ |
| 1. Insects | Terrestrial | ————— |
| 2. Amphibian tadpoles of frog, salamanders | —————- | —————- |
| 3. Fish | Aquatic | ————– |
| 4. Reptiles, Birds and Mammals | —————- | —————- |
| Waves recorded in ECG | Heart activity |
| (1) P wave | (a) Ventricular repolarization |
| (2) QRS complex | (b) Atrial depolarization |
| (3) T wave | (c) Isoelectric segment |
| (4) ST segment | (d) Ventricular depolarization |