Host-specific parasites show which ecological phenomenon

  1. Co-evolve
  2. Competition
  3. Predation
  4. Mutualism

Subtopic:  Population Interactions: Parasitism |
 80%
From NCERT
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Parasites often have one or two intermediate hosts or vectors

  1. To make life cycle more complicated
  2. To facilitate parasitisation of it's primary host
  3. To cause advance life cycle
  4. To infect a broad range of organisms
Subtopic:  Population Interactions: Parasitism |
 60%
From NCERT
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The human liver fluke

  1. A trematode parasite
  2. Depends on two intermediate hosts- snail and Dog
  3. Both A and B
  4. Simple life cycle
Subtopic:  Population Interactions: Parasitism |
 63%
From NCERT
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Which of the following is not correct with respect to parasites?

  1. Harm the host
  2. Reduce survival, growth of host.
  3. Doesn't affect population density of host as no effect on reproduction ability of host
  4. Render host more vulnerable to predation by making it physically weak.
Subtopic:  Population Interactions: Parasitism |
 86%
From NCERT
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Which of the following is not an ectoparasite ?

  1. Ticks
  2. Lice
  3. Copepods
  4. Fluke
Subtopic:  Population Interactions: Parasitism |
 89%
From NCERT
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Female mosquito

  1. Needs our blood for reproduction
  2. Parasite
  3. Get some nutrition from our body
  4. Both A and B
Subtopic:  Population Interactions: Parasitism |
 68%
From NCERT
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Endoparasites have

  1. Complex life cycle
  2. Complex anatomical and morphological features
  3. Less emphasis on Reproductive potential
  4. All of these
Subtopic:  Population Interactions: Parasitism |
 56%
From NCERT
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Endoparasites have complex life cycle

  1. Because of extreme morphological adaptations
  2. Because of extreme specialisation.
  3. Because of extreme anatomical adaptation
  4. Because of less reproductive potential
Subtopic:  Population Interactions: Parasitism |
 67%
From NCERT
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In Brood Parasitism which of the two birds are involved?

  1. Cuckoo and Parrot
  2. Parrot and Crow
  3. Crow and Cuckoo
  4. Cuckoo and Eagle
Subtopic:  Population Interactions: Parasitism |
 95%
From NCERT
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Which of the following is not an example of commensalism?

  1. An orchid as an epiphyte over a mango tree
  2. Barnacle on the back of whale
  3. Copepods over Marine fishes
  4. Cattle egret and grazing cattle
Subtopic:  Population Interactions: Commensalism, Protocooperation & Mutualism |
 80%
From NCERT
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