An interaction between two individuals w...

An interaction between two individuals where one is benefitted while the other is neither benefitted nor harmed is called as

Amensalism

Commensalism

Predation

Mutualism

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[A] : When the organisms live together in such a manner that one organism benefitted , while other has no effects , it is called commensalism . [R] : In commensalism one partner derives benefit from the other partner without in any way benefitting or harming it .

The relationship between two species in which one is inhibited or harmed by the presence of the other is :

[A] : Each food-level in an ecosystem is called trophic level . [R] : When an organism benefitted with affecting the other is called commensalism .

[A] : There is a grudual increase in the energy content at successive trophic level from producer to consumers . [R]:When one organism benefits the other in a chain , it is called commensalism .

A bird is flying to and fro between two cars moving with constant speeds on a straight smooth road. One car is moving at 18 km/h while other is moving towards the other at 27 km/h. The bird starts moving from the first car towards the other with a speed of 36 km/h when the distance of separation between the two is 36 km. What is the displacement of the bird when the two cars meet each other?

If the angle between two lines is pi/4 and slope of one of the lines is 1/2 , find the slope of the other line.

Go through the following statements (i) In geometric growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and mature. (ii) The ability of plants to follow different pathways in response to environment or phases of life to form different kinds of structures, is called plasticity. (iii) The mathematical expression for arithmetic growth is Lt = L_0 + rt while for geometric growth, it is W_1=W_0=W_(0)e^(rt) (iv) The form of growth wherein new cells are always being added to the plant body by the activity of the meristem, is called the open form of growth. Which of these are correct .

TRUEMAN BIOLOGY-ORGANISMS AND POPULASTIONS -Multiple Choice Questions

Under unfavourable conditions many zooplankton species in lakhs and po...
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The number of individuals of the population who left the habitat and g...
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An interaction between two individuals where one is benefitted while t...
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The logistic population growth is expressed by the equation
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The feature of the xerophytic plant leaves are (I) Leathery surface ...
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Major ecological community of plants and animals extending over large ...
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Organisms restricted to narrow range of temperature are
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Adapative measure to protect against extreme heat by poikilotherms is
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A sedentary sea anemone gets attached to the shell lining of hermit cr...
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A biologist studied the population of rats in a barn. He found that th...
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Just as a person moving from Delhi to Shimla to escape the heat for th...
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A location with luxuriant growth of lichens on the trees indicates tha...
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The following graph depicts changes in two populations (A and B) of he...
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An association of individuals of different species living in the same ...
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Most animals that live in deep oceanic waters are:
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In which of the following interaction both partners are adversely affe...
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Gause's principle of competitive exclusion states that:
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When does the growth rate of a population following the logistic model...
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Which of the following is correct for r-selected species ?
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If '+' sign is assigned to benefited interaction '-' sign to detriment...
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