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A sedentary sea anemone gets attached to...

A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is

A

Ectoparasitism

B

Symbiosis

C

Commensalism

D

Amensalism

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The correct Answer is:
C
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Name the interaction in each of the following: (a) Cuckoo lay: her eggs in the crew’s nest. (b) Orchid grows on a mango tree. (c) Ticks live on the skin of doze. \ (d) Sea anemone in often found on the shell of hermit crab?

A ball of mass in m= 1 kg is hung vertically by a thread of length l = 1.50 m . Upper end of the thread is attached to the ceiling of a trolley of mass M= 4 kg . Initially, the trolley is stationary and it is free to move along horizontal rails without friction. A shell of mass m=1 kg, moving horizontally with velocity v_(0) = 6 m//s collides with the ball and gets stuck with it. As a result, the thread starts to deflect towards right. The velocity of the combined body just after collision is

A ball of mass in m= 1 kg is hung vertically by a thread of length l = 1.50 m . Upper end of the thread is attached to the ceiling of a trolley of mass M= 4 kg . Initially, the trolley is stationary and it is free to move along horizontal rails without friction. A shell of mass m=1 kg , moving horizontally with velocity v_(0 )= 6 m//s collides with the ball and gets stuck with it. As a result, the thread starts to deflect towards right. At the time of maximum deflection of the thread with vertical, the trolley will move with velocity

A ball of mass in m= 1 kg is hung vertically by a thread of length l = 1.50 m . Upper end of the thread is attached to the ceiling of a trolley of mass M= 4 kg . Initially, the trolley is stationary and it is free to move along horizontal rails without friction. A shell of mass m=1 kg , moving horizontally with velocity v_(0) = 6 m//s collides with the ball and gets stuck with it. As a result, the thread starts to deflect towards right. The maximum deflection of the thread with the vertical is

What type of relationship exists between sea anemone and hermit crab .

The relationship between sea-anemone and hermit crab is called protocooperation.

A: The interaction between sea anemone and down fish is commensalism. R: The fish gets protection from predators but anemone does not appear to derive any benefit.

MOTION-ECOLOGY-EXERCISE -3
  1. The rate of formation of new organic matter by rabbit in a grassland, ...

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  2. The domestic sewage in large cities

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  3. A sedentary sea anemone gets attached to the shell lining of hermit cr...

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  4. Kyoto Protocol was endorsed at

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  5. Secondary productivity is rate of formation of new organic matter by:

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  6. Which one of the following processes during decomposition is correctly...

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  7. Which of the following represent maximum number of species among globa...

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  8. The Air Prevention and Control of Pollution Act came into force in:

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  9. Global warming can be controlled by

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  10. Which one of the following is not used for ex situ plant conservation

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  11. During sewage treatment, biogases are produced which includes :

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  12. An example of ex-situ conservation is

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  13. A location with luxuriant growth of lichens on the trees indicates tha...

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  14. A species facing extremely high risk of extinction in the immediate fu...

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  15. The zone of atmosphere in which the ozone layer is present is called:

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  16. The organization which publishes the Red List of species is:-

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  17. What gases are produced in anaerobic sludge digestres

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  18. Just as a person moving from Delhi to Shimla to escape the heat for th...

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  19. Given below is a simplified model of phosphorus cycling in a terrestri...

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  20. Given below is the representation of the extent of global diversity of...

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