Question
Differentiate between:
- Predator and parasite.
- S-Shaped and J-Shaped growth curve.
✓
Answer
- Predator and parasite.
| S. No. | Predator | Parasite |
| 1. | It feeds on another organism called prey. | Itn feeds on another organism called host. |
| 2. | Predator is larger and stronger than the prey. | Parasite is smaller and weaker than tbhe host. |
| 3. | It kills the prey. | Parasite does not immediately kill the host though the latter may die of prolonged exploitation. |
| 4. | Predator feeds on killed prey. | It feeds on living host. |
| 5. | It feeds over the prey from outside. | Parasite may feed over the host from outside or inside. |
- S-Shaped and J-Shaped growth curve.
| S. No. | S-Shaped | J-Shaped |
| 1. | It comprises the lag phase, exponential phase and stationary phase. | It comprises only two phases - lag phase and exponential phase. |
| 2. | Population becomes stable with zero growth rate and the curve levels. | Population faces mass mortality, and the curve stops |
| 3. | It is observed by most species including humans. | It is observed in few organisms such as reindeer and annual plants. |
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