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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:
B
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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.

MODERN PUBLICATION-ORGANISMS AND POPULATIONS -COMPETITION FILE (OBJECTIVE TYPE QUESTIONS)(A. MULTIPLE CHOICE QUESTIONS)
  1. Cuscuta is an example of

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  2. A biologist studied the population of rats in a barn. He found that th...

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

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  4. Full name of professor Misra who is known as the Father of Ecology in ...

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  5. Population growth curve is sigmoid, if the growth pattern is

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  6. Temperature increases with height in which of the spheres

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  7. (dN)/(dt) rN equation is applicable to …………..population growth.

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  8. A few normal seedlings of tomato were kept in a dark room. After few d...

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

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  10. Mycorrhiza promotes plant growth by

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  11. Most animals are tree dwellers in a

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  12. The following graph depicts changes in two populations (A and B) of he...

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  13. In which of the following interaction both partners are adversely affe...

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  14. The figure given below is a diagrammatic representation of response of...

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  15. Allen's rule applies to:

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  16. Troublesome American water weed found in Inida is

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  17. The characters such as pointed elongated snout, strong and stout forel...

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  18. A cuckoo laying eggs in the nest of other species of birds is an examp...

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  19. One of the following pair of animals is an example of commensalism :

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  20. Father of Ecology in india

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