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Which is appropriately defined ?...

Which is appropriately defined ?

A

Host is an organism which provides food to another organism

B

Amensalism is relationship in which one species is benefitted while the other is unaffected

C

Predator is an organism that catches and kills other organisms for food

D

Parasite is an organism which always lives inside the body of other organism and may kill it

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USHA PUBLICATION-ORGANISMS AND ENVIRONMENT-EXERCISE
  1. A phenomenon when parasite parasitizes another parasite is :

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  2. Bell - shaped polygonal pyramid indicates :

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  3. Which is appropriately defined ?

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  4. Predtaion perform all . Except

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  5. Parasitic phanerogams absorb water and solute from host plant by :

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  6. Microscopic aquatic organisms lacking locomotory ability and drifting ...

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  7. Two important factors that influences the life of organisms are

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  8. Under unfavourable conditions many zooplankton species in lakes and po...

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  9. Select the correct pair of adaptations in desert lizards : ( A ) Burro...

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  10. Ecology describes

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  11. Monarch Butterfly is not eaten by predators because of :

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  12. A logistic growth curve depicting population that is limited by carryi...

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  13. population with natality equal to mortality is :

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  14. Sigmoid // logistic growth curve is represented by :

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  15. A population growing in a habitat with limited resources shows four ph...

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  16. Which one is parasite in true sense ?

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  17. Which type of human population is represented by this age pyramid ? Po...

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  18. Complete competitors cannot coexist " is true for :

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  19. What do A , B and C represent in the diagram :

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  20. Vertical distfibution of species occupying different heights is :

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