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